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Function leastFactor has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
Open

const leastFactor = function (n) {
  if (!Number.isFinite(n)) {
    return n;
  }
  if (n === 0) {
Severity: Minor
Found in src/helpers/leastFactor.js - About 3 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function leastFactor has 46 lines of code (exceeds 25 allowed). Consider refactoring.
Open

const leastFactor = function (n) {
  if (!Number.isFinite(n)) {
    return n;
  }
  if (n === 0) {
Severity: Minor
Found in src/helpers/leastFactor.js - About 1 hr to fix

    Function addCollector has 38 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      addCollector(collector) {
    const self = this;
    if (self._processCount > 0) {
      throw new Error('Cannot add a new collector unless you call reset() first');
    }
    Severity: Minor
    Found in src/stats/BaseStats.js - About 1 hr to fix

      Function addCollector has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
      Open

        addCollector(collector) {
    const self = this;
    if (self._processCount > 0) {
      throw new Error('Cannot add a new collector unless you call reset() first');
    }
      Severity: Minor
      Found in src/stats/BaseStats.js - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Similar blocks of code found in 3 locations. Consider refactoring.
      Open

      export default class Range extends Collector {
  constructor() {
    super('range', 0, ['min', 'max']);
  }
  handleGet(state) {
      Severity: Major
      Found in src/collectors/number/Range.js and 2 other locations - About 1 hr to fix
      src/collectors/number/HarmonicMean.js on lines 6..13
      src/collectors/number/Mean.js on lines 8..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 56.

      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 3 locations. Consider refactoring.
      Open

      export default class HarmonicMean extends Collector {
  constructor() {
    super('hmean', 0, ['count', 'sumOfRecipricals']);
  }
  handleGet(state) {
      Severity: Major
      Found in src/collectors/number/HarmonicMean.js and 2 other locations - About 1 hr to fix
      src/collectors/number/Mean.js on lines 8..15
      src/collectors/number/Range.js on lines 8..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 56.

      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 3 locations. Consider refactoring.
      Open

      export default class Mean extends Collector {
  constructor() {
    super('mean', 0, ['count', 'sum']);
  }
  handleGet(state) {
      Severity: Major
      Found in src/collectors/number/Mean.js and 2 other locations - About 1 hr to fix
      src/collectors/number/HarmonicMean.js on lines 6..13
      src/collectors/number/Range.js on lines 8..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 56.

      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

      export default class StandardDeviationRunning extends Collector {
  constructor() {
    super('standardDeviationRunning', 0, ['varianceRunning']);
  }
  handleGet(state) {
      Severity: Major
      Found in src/collectors/number/StandardDeviationRunning.js and 1 other location - About 1 hr to fix
      src/collectors/number/StandardDeviationStable.js on lines 6..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

      export default class StandardDeviationStable extends Collector {
  constructor() {
    super('standardDeviationStable', 0, ['varianceStable']);
  }
  handleGet(state) {
      Severity: Major
      Found in src/collectors/number/StandardDeviationStable.js and 1 other location - About 1 hr to fix
      src/collectors/number/StandardDeviationRunning.js on lines 8..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 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

      export default class Max extends Collector {
  constructor() {
    super('max', Number.MIN_VALUE);
  }
  handleProcess(state, prev, val) {
      Severity: Major
      Found in src/collectors/number/Max.js and 1 other location - About 1 hr to fix
      src/collectors/number/Min.js on lines 7..14

      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

      export default class Min extends Collector {
  constructor() {
    super('min', Number.MAX_VALUE);
  }
  handleProcess(state, prev, val) {
      Severity: Major
      Found in src/collectors/number/Min.js and 1 other location - About 1 hr to fix
      src/collectors/number/Max.js on lines 7..14

      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

      export default class Sum extends Collector {
  constructor() {
    super('sum', 0);
  }
  handleProcess(state, prev, val) {
      Severity: Minor
      Found in src/collectors/number/Sum.js and 1 other location - About 35 mins to fix
      src/collectors/number/Product.js on lines 8..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 46.

      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

      export default class Product extends Collector {
  constructor() {
    super('product', 1);
  }
  handleProcess(state, prev, val) {
      Severity: Minor
      Found in src/collectors/number/Product.js and 1 other location - About 35 mins to fix
      src/collectors/number/Sum.js on lines 8..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 46.

      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

      Avoid too many return statements within this function.
      Open

            return i + 4;
      Severity: Major
      Found in src/helpers/leastFactor.js - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

            return 5;
        Severity: Major
        Found in src/helpers/leastFactor.js - About 30 mins to fix

          Avoid too many return statements within this function.
          Open

                return i + 6;
          Severity: Major
          Found in src/helpers/leastFactor.js - About 30 mins to fix

            Avoid too many return statements within this function.
            Open

                  return i + 16;
            Severity: Major
            Found in src/helpers/leastFactor.js - About 30 mins to fix

              Avoid too many return statements within this function.
              Open

                    return i;
              Severity: Major
              Found in src/helpers/leastFactor.js - About 30 mins to fix

                Avoid too many return statements within this function.
                Open

                      return i + 12;
                Severity: Major
                Found in src/helpers/leastFactor.js - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                    return n;
                  Severity: Major
                  Found in src/helpers/leastFactor.js - About 30 mins to fix
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