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public/assets/fastclick.js

Summary

Maintainability
D
3 days
Test Coverage

File fastclick.js has 355 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/**
 * @preserve FastClick: polyfill to remove click delays on browsers with touch UIs.
 *
 * @version 0.6.7
 * @codingstandard ftlabs-jsv2
Severity: Minor
Found in public/assets/fastclick.js - About 4 hrs to fix

    Function onTouchEnd has a Cognitive Complexity of 22 (exceeds 5 allowed). Consider refactoring.
    Open

    FastClick.prototype.onTouchEnd = function(event) {
    'use strict';
    var forElement, trackingClickStart, targetTagName, scrollParent, touch, targetElement = this.targetElement;

    // If the touch has moved, cancel the click tracking
    Severity: Minor
    Found in public/assets/fastclick.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 FastClick has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
    Open

    function FastClick(layer) {
    'use strict';
    var oldOnClick, self = this;
    Severity: Minor
    Found in public/assets/fastclick.js - About 2 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 FastClick has 58 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    function FastClick(layer) {
    'use strict';
    var oldOnClick, self = this;
    Severity: Major
    Found in public/assets/fastclick.js - About 2 hrs to fix

      Function onTouchEnd has 53 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      FastClick.prototype.onTouchEnd = function(event) {
    'use strict';
    var forElement, trackingClickStart, targetTagName, scrollParent, touch, targetElement = this.targetElement;

    // If the touch has moved, cancel the click tracking
      Severity: Major
      Found in public/assets/fastclick.js - About 2 hrs to fix

        Function onTouchStart has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
        Open

        FastClick.prototype.onTouchStart = function(event) {
    'use strict';
    var targetElement, touch, selection;

    // Ignore multiple touches, otherwise pinch-to-zoom is prevented if both fingers are on the FastClick element (issue #111).
        Severity: Minor
        Found in public/assets/fastclick.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 onTouchStart has 29 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

        FastClick.prototype.onTouchStart = function(event) {
    'use strict';
    var targetElement, touch, selection;

    // Ignore multiple touches, otherwise pinch-to-zoom is prevented if both fingers are on the FastClick element (issue #111).
        Severity: Minor
        Found in public/assets/fastclick.js - About 1 hr to fix

          Function notNeeded has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
          Open

          FastClick.notNeeded = function(layer) {
    'use strict';
    var metaViewport;

    // Devices that don't support touch don't need FastClick
          Severity: Minor
          Found in public/assets/fastclick.js - About 55 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

          Function updateScrollParent has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
          Open

          FastClick.prototype.updateScrollParent = function(targetElement) {
    'use strict';
    var scrollParent, parentElement;

    scrollParent = targetElement.fastClickScrollParent;
          Severity: Minor
          Found in public/assets/fastclick.js - About 45 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

          Function onMouse has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
          Open

          FastClick.prototype.onMouse = function(event) {
    'use strict';

    // If a target element was never set (because a touch event was never fired) allow the event
    if (!this.targetElement) {
          Severity: Minor
          Found in public/assets/fastclick.js - About 45 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

          Avoid too many return statements within this function.
          Open

              return false;
          Severity: Major
          Found in public/assets/fastclick.js - About 30 mins to fix

            Avoid too many return statements within this function.
            Open

                        return true;
            Severity: Major
            Found in public/assets/fastclick.js - About 30 mins to fix

              Avoid too many return statements within this function.
              Open

                  return false;
              Severity: Major
              Found in public/assets/fastclick.js - About 30 mins to fix

                Avoid too many return statements within this function.
                Open

                    return true;
                Severity: Major
                Found in public/assets/fastclick.js - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                          return false;
                  Severity: Major
                  Found in public/assets/fastclick.js - About 30 mins to fix

                    Function needsClick has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
                    Open

                    FastClick.prototype.needsClick = function(target) {
    'use strict';
    switch (target.nodeName.toLowerCase()) {

    // Don't send a synthetic click to disabled inputs (issue #62)
                    Severity: Minor
                    Found in public/assets/fastclick.js - About 25 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

                        if (this.deviceIsAndroid) {
        layer.addEventListener('mouseover', this.onMouse, true);
        layer.addEventListener('mousedown', this.onMouse, true);
        layer.addEventListener('mouseup', this.onMouse, true);
    }
                    Severity: Major
                    Found in public/assets/fastclick.js and 1 other location - About 1 hr to fix
                    public/assets/fastclick.js on lines 663..667

                    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

                        if (this.deviceIsAndroid) {
        layer.removeEventListener('mouseover', this.onMouse, true);
        layer.removeEventListener('mousedown', this.onMouse, true);
        layer.removeEventListener('mouseup', this.onMouse, true);
    }
                    Severity: Major
                    Found in public/assets/fastclick.js and 1 other location - About 1 hr to fix
                    public/assets/fastclick.js on lines 112..116

                    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

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