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MeowEmitter.js

Summary

Maintainability
F
5 days
Test Coverage

Function MeowEmitter has 208 lines of code (exceeds 25 allowed). Consider refactoring.
Open

var MeowEmitter = function() {
    'use strict';
    var Meow_Process = ['Meow_EnvProcess.js'];
    var util = ['util.js'];
    var build = this;
Severity: Major
Found in MeowEmitter.js - About 1 day to fix

    Function MeowEmitter has a Cognitive Complexity of 37 (exceeds 5 allowed). Consider refactoring.
    Open

    var MeowEmitter = function() {
    'use strict';
    var Meow_Process = ['Meow_EnvProcess.js'];
    var util = ['util.js'];
    var build = this;
    Severity: Minor
    Found in MeowEmitter.js - About 5 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 MeowAsyncList has 59 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        var MeowAsyncList = function(list) {

    var MeowEventProxy = ['MeowEventProxy.js'];

    var xxx = this;
    Severity: Major
    Found in MeowEmitter.js - About 2 hrs to fix

      Function compile has 29 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          MeowAsyncList.prototype.compile = function(mapper) {
        var lister = function(list) {
            xxx.list = list.map(mapper);
            xxx.length = list.length;
            xxx.proxy = new MeowEventProxy();
      Severity: Minor
      Found in MeowEmitter.js - About 1 hr to fix

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

            MeowAsyncList.prototype.run = function(Meow_Args, Meow_Args2, Meow_Args3) {
        var list = xxx.list;
        if(xxx.length !== 0) {
            xxx.proxy.after('finished', xxx.length, function (triggers) {
                xxx.handler(triggers);
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 5 hrs to fix
        MeowEmitter.js on lines 57..71

        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 144.

        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

                lister.prototype.run = function(Meow_Args, Meow_Args2, Meow_Args3) {
            var list = xxx.list;
            if(xxx.length !== 0) {
                xxx.proxy.after('finished', xxx.length, function (triggers) {
                    xxx.handler(triggers);
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 5 hrs to fix
        MeowEmitter.js on lines 28..42

        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 144.

        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

            MeowEmitterClass.prototype.on = function(event, handler) {
        meowAsync(function() {
            if(build.eventListeners[event] === undefined) {
                build.eventListeners[event] = [handler];
            } else {
        Severity: Major
        Found in MeowEmitter.js and 2 other locations - About 3 hrs to fix
        MeowEmitter.js on lines 161..170
        MeowEmitter.js on lines 171..180

        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 96.

        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

            MeowEmitterClass.prototype.addListener = function(event, handler) {
        meowAsync(function() {
            if(build.eventListeners[event] === undefined) {
                build.eventListeners[event] = [handler];
            } else {
        Severity: Major
        Found in MeowEmitter.js and 2 other locations - About 3 hrs to fix
        MeowEmitter.js on lines 151..160
        MeowEmitter.js on lines 161..170

        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 96.

        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

            MeowEmitterClass.prototype.once = function(event, handler) {
        meowAsync(function() {
            if(build.eventListeners[event] === undefined) {
                build.eventListeners[event] = [handler];
            } else {
        Severity: Major
        Found in MeowEmitter.js and 2 other locations - About 3 hrs to fix
        MeowEmitter.js on lines 151..160
        MeowEmitter.js on lines 171..180

        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 96.

        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

                addListener: function(event, handler) {
            meowAsync(function() {
                if(build.eventListeners[event] === undefined) {
                    build.eventListeners[event] = [handler];
                } else {
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 2 hrs to fix
        MeowEmitter.js on lines 83..92

        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 86.

        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

                on: function(event, handler) {
            meowAsync(function() {
                if(build.eventListeners[event] === undefined) {
                    build.eventListeners[event] = [handler];
                } else {
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 2 hrs to fix
        MeowEmitter.js on lines 93..102

        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 86.

        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

                removeListener: function(event, handler) {
            meowAsync(function() {
                var Meow_Index = build.eventListeners[event].indexOf(handler);
                build.eventListeners[event].splice(Meow_Index, 1);
            });
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 1 hr to fix
        MeowEmitter.js on lines 181..187

        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 66.

        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

            MeowEmitterClass.prototype.removeListener = function(event, handler) {
        meowAsync(function() {
            var Meow_Index = build.eventListeners[event].indexOf(handler);
            build.eventListeners[event].splice(Meow_Index, 1);
        });
        Severity: Major
        Found in MeowEmitter.js and 1 other location - About 1 hr to fix
        MeowEmitter.js on lines 113..119

        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 66.

        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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