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Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('componentWillUpdate has been renamed, and is not recommended for use', () => {
  class MyComponent extends Component {
    // eslint-disable-next-line react/no-deprecated, @typescript-eslint/no-empty-function
    componentWillUpdate() {}
Severity: Major
Found in src/react-componentWillUpdate.test.tsx and 1 other location - About 4 hrs to fix
src/react-componentWillMount.test.tsx on lines 8..26

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 115.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('componentWillMount has been renamed, and is not recommended for use', () => {
  class MyComponent extends Component {
    // eslint-disable-next-line react/no-deprecated, @typescript-eslint/no-empty-function
    componentWillMount() {}
Severity: Major
Found in src/react-componentWillMount.test.tsx and 1 other location - About 4 hrs to fix
src/react-componentWillUpdate.test.tsx on lines 8..26

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 115.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('React does not recognize the prop on a DOM element', () => {
  // @ts-ignore
  expect(() => render(<div unknownProp="value" />)).toThrow(
    'throw-on console.error: Warning: React does not recognize the `unknownProp` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `unknownprop` instead. If you accidentally passed it from a parent component, remove it from the DOM element.'
  );
Severity: Major
Found in src/react-unknown-prop.test.tsx and 1 other location - About 2 hrs to fix
src/react-invalid-prop.test.tsx on lines 5..15

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 85.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('Invalid DOM property', () => {
  // @ts-ignore
  expect(() => render(<div class="invalid" />)).toThrow(
    'throw-on console.error: Warning: Invalid DOM property `class`. Did you mean `className`?'
  );
Severity: Major
Found in src/react-invalid-prop.test.tsx and 1 other location - About 2 hrs to fix
src/react-unknown-prop.test.tsx on lines 5..15

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 85.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

  if (typeof expected === 'string') {
    expect(format(str, ...values)).toEqual(expected);
  } else {
    expect(format(str, ...values)).toMatch(expected);
  }
Severity: Major
Found in src/util/format.test.ts and 1 other location - About 1 hr to fix
src/util/format.test.ts on lines 30..34

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 61.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

  if (typeof expectedNodeFormat === 'string') {
    expect(nodeFormat(str, ...values)).toEqual(expectedNodeFormat);
  } else {
    expect(nodeFormat(str, ...values)).toMatch(expectedNodeFormat);
  }
Severity: Major
Found in src/util/format.test.ts and 1 other location - About 1 hr to fix
src/util/format.test.ts on lines 24..28

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 61.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 2 locations. Consider refactoring.
Open

  expect(() =>
    render(<DivComponent>{[<DivComponent key="0" />, <DivComponent key="0" />]}</DivComponent>)
  ).toThrow(
    'throw-on console.error: Warning: Encountered two children with the same key, `0`. Keys should be unique so that components maintain their identity across updates. Non-unique keys may cause children to be duplicated and/or omitted — the behavior is unsupported and could change in a future version.'
  );
Severity: Major
Found in src/react-same-key.test.tsx and 1 other location - About 1 hr to fix
src/react-same-key.test.tsx on lines 8..12

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 60.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 2 locations. Consider refactoring.
Open

  expect(() =>
    render(<DivComponent>{[<DivComponent key="0" />, <DivComponent key="0" />]}</DivComponent>)
  ).toThrow(
    'throw-on console.error: Warning: Encountered two children with the same key, `0`. Keys should be unique so that components maintain their identity across updates. Non-unique keys may cause children to be duplicated and/or omitted — the behavior is unsupported and could change in a future version.'
  );
Severity: Major
Found in src/react-same-key.test.tsx and 1 other location - About 1 hr to fix
src/react-same-key.test.tsx on lines 14..18

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 60.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 2 locations. Consider refactoring.
Open

  function useCounter() {
    const [count, setCount] = useState(0);

    function increment() {
      setCount(count + 1);
Severity: Major
Found in src/react-update-not-wrapped-in-act.test.ts and 1 other location - About 1 hr to fix
src/MyComponent.test.ts on lines 8..16

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 55.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 2 locations. Consider refactoring.
Open

function useCounter() {
  const [count, setCount] = useState(0);

  function increment() {
    setCount(count + 1);
Severity: Major
Found in src/MyComponent.test.ts and 1 other location - About 1 hr to fix
src/react-update-not-wrapped-in-act.test.ts on lines 5..13

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 55.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('%o', () => {
  expectFormatFail(
    "'08' '11px' 3.14 '314e-2' 'foo' Symbol(symbol) false null undefined { foo: { bar: 'baz' } } [ { foo: { bar: 'baz' } }, { foo: { bar: 'baz' } }, { foo: { bar: 'baz' } } ] 8n",
    `'08' '11px' 3.14 '314e-2' 'foo' Symbol(symbol) false null undefined { foo: { bar: 'baz' } } [
  { foo: { bar: 'baz' } },
Severity: Minor
Found in src/util/format.test.ts and 1 other location - About 55 mins to fix
src/util/format.test.ts on lines 187..198

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 54.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

test('%O', () => {
  expectFormatFail(
    "'08' '11px' 3.14 '314e-2' 'foo' Symbol(symbol) false null undefined { foo: { bar: 'baz' } } [ { foo: { bar: 'baz' } }, { foo: { bar: 'baz' } }, { foo: { bar: 'baz' } } ] 8n",
    `'08' '11px' 3.14 '314e-2' 'foo' Symbol(symbol) false null undefined { foo: { bar: 'baz' } } [
  { foo: { bar: 'baz' } },
Severity: Minor
Found in src/util/format.test.ts and 1 other location - About 55 mins to fix
src/util/format.test.ts on lines 173..185

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 54.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/throwOnConsole.test.tsx and 5 other locations - About 40 mins to fix
src/react-change-order-hooks.test.tsx on lines 4..6
src/react-componentWillMount.test.tsx on lines 4..6
src/react-componentWillUpdate.test.tsx on lines 4..6
src/react-list-unique-key.test.tsx on lines 3..5
src/react-same-key.test.tsx on lines 3..5

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/react-componentWillMount.test.tsx and 5 other locations - About 40 mins to fix
src/react-change-order-hooks.test.tsx on lines 4..6
src/react-componentWillUpdate.test.tsx on lines 4..6
src/react-list-unique-key.test.tsx on lines 3..5
src/react-same-key.test.tsx on lines 3..5
src/throwOnConsole.test.tsx on lines 7..9

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/react-change-order-hooks.test.tsx and 5 other locations - About 40 mins to fix
src/react-componentWillMount.test.tsx on lines 4..6
src/react-componentWillUpdate.test.tsx on lines 4..6
src/react-list-unique-key.test.tsx on lines 3..5
src/react-same-key.test.tsx on lines 3..5
src/throwOnConsole.test.tsx on lines 7..9

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/react-list-unique-key.test.tsx and 5 other locations - About 40 mins to fix
src/react-change-order-hooks.test.tsx on lines 4..6
src/react-componentWillMount.test.tsx on lines 4..6
src/react-componentWillUpdate.test.tsx on lines 4..6
src/react-same-key.test.tsx on lines 3..5
src/throwOnConsole.test.tsx on lines 7..9

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/react-same-key.test.tsx and 5 other locations - About 40 mins to fix
src/react-change-order-hooks.test.tsx on lines 4..6
src/react-componentWillMount.test.tsx on lines 4..6
src/react-componentWillUpdate.test.tsx on lines 4..6
src/react-list-unique-key.test.tsx on lines 3..5
src/throwOnConsole.test.tsx on lines 7..9

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 6 locations. Consider refactoring.
Open

function DivComponent({ children }: { children?: React.ReactNode }) {
  return <div>{children}</div>;
}
Severity: Major
Found in src/react-componentWillUpdate.test.tsx and 5 other locations - About 40 mins to fix
src/react-change-order-hooks.test.tsx on lines 4..6
src/react-componentWillMount.test.tsx on lines 4..6
src/react-list-unique-key.test.tsx on lines 3..5
src/react-same-key.test.tsx on lines 3..5
src/throwOnConsole.test.tsx on lines 7..9

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 49.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

  if (typeof expected === 'string') {
    expect(inspect(value)).toEqual(expected);
    expect(nodeInspect(value, { breakLength })).toEqual(expected);
  } else {
Severity: Minor
Found in src/util/inspect.test.ts and 1 other location - About 40 mins to fix
src/util/inspect.test.ts on lines 16..19

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 48.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 5 locations. Consider refactoring.
Open

test('%f', () => {
  expectFormat(
    '8 11 3.14 3.14 NaN NaN NaN NaN NaN NaN NaN 8',
    Array(valuesWithBigInt.length).fill('%f').join(' '),
    ...valuesWithBigInt
Severity: Major
Found in src/util/format.test.ts and 4 other locations - About 40 mins to fix
src/util/format.test.ts on lines 129..135
src/util/format.test.ts on lines 137..143
src/util/format.test.ts on lines 153..159
src/util/format.test.ts on lines 200..206

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 48.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

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