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lts/lib/internal/console/constructor.js

Summary

Maintainability
F
3 wks
Test Coverage

File constructor.js has 494 lines of code (exceeds 250 allowed). Consider refactoring.
Open

'use strict';

// The Console constructor is not actually used to construct the global
// console. It's exported for backwards compatibility.
Severity: Minor
Found in lts/lib/internal/console/constructor.js - About 7 hrs to fix

    Function table has a Cognitive Complexity of 44 (exceeds 5 allowed). Consider refactoring.
    Open

      table(tabularData, properties) {
    if (properties !== undefined && !ArrayIsArray(properties))
      throw new ERR_INVALID_ARG_TYPE('properties', 'Array', properties);

    if (tabularData === null || typeof tabularData !== 'object')
    Severity: Minor
    Found in lts/lib/internal/console/constructor.js - About 6 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 table has 100 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      table(tabularData, properties) {
    if (properties !== undefined && !ArrayIsArray(properties))
      throw new ERR_INVALID_ARG_TYPE('properties', 'Array', properties);

    if (tabularData === null || typeof tabularData !== 'object')
    Severity: Major
    Found in lts/lib/internal/console/constructor.js - About 4 hrs to fix

      Function Console has 52 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      function Console(options /* or: stdout, stderr, ignoreErrors = true */) {
  // We have to test new.target here to see if this function is called
  // with new, because we need to define a custom instanceof to accommodate
  // the global console.
  if (!new.target) {
      Severity: Major
      Found in lts/lib/internal/console/constructor.js - About 2 hrs to fix

        Function Console has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
        Open

        function Console(options /* or: stdout, stderr, ignoreErrors = true */) {
  // We have to test new.target here to see if this function is called
  // with new, because we need to define a custom instanceof to accommodate
  // the global console.
  if (!new.target) {
        Severity: Minor
        Found in lts/lib/internal/console/constructor.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

        Function value has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
        Open

            value: function(streamSymbol, string) {
      const ignoreErrors = this._ignoreErrors;
      const groupIndent = this[kGroupIndent];

      const useStdout = streamSymbol === kUseStdout;
        Severity: Minor
        Found in lts/lib/internal/console/constructor.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

        Function value has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
        Open

            value: function(stream) {
      let color = this[kColorMode];
      if (color === 'auto') {
        color = stream.isTTY && (
          typeof stream.getColorDepth === 'function' ?
        Severity: Minor
        Found in lts/lib/internal/console/constructor.js - About 35 mins 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 2 locations. Consider refactoring.
        Open

        const consoleMethods = {
  log(...args) {
    this[kWriteToConsole](kUseStdout, this[kFormatForStdout](args));
  },
        Severity: Major
        Found in lts/lib/internal/console/constructor.js and 1 other location - About 1 wk to fix
        current/lib/internal/console/constructor.js on lines 339..570

        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 1933.

        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

        ObjectDefineProperties(Console.prototype, {
  [kBindStreamsEager]: {
    ...consolePropAttributes,
    // Eager version for the Console constructor
    value: function(stdout, stderr) {
        Severity: Major
        Found in lts/lib/internal/console/constructor.js and 1 other location - About 5 days to fix
        current/lib/internal/console/constructor.js on lines 170..316

        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 950.

        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 Console(options /* or: stdout, stderr, ignoreErrors = true */) {
  // We have to test new.target here to see if this function is called
  // with new, because we need to define a custom instanceof to accommodate
  // the global console.
  if (!new.target) {
        Severity: Major
        Found in lts/lib/internal/console/constructor.js and 1 other location - About 2 days to fix
        current/lib/internal/console/constructor.js on lines 84..152

        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 442.

        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 createWriteErrorHandler(instance, streamSymbol) {
  return (err) => {
    // This conditional evaluates to true if and only if there was an error
    // that was not already emitted (which happens when the _write callback
    // is invoked asynchronously).
        Severity: Major
        Found in lts/lib/internal/console/constructor.js and 1 other location - About 3 hrs to fix
        current/lib/internal/console/constructor.js on lines 319..337

        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 112.

        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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