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Push — master ( c853f7...ca1a51 )
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created

underscore-min.js ➔ ... ➔   D

Complexity

Conditions 15
Paths 47

Size

Total Lines 1

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 1 Features 0
Metric Value
cc 15
nc 47
nop 3
dl 0
loc 1
rs 4.9121
c 1
b 1
f 0

How to fix   Complexity   

Complexity

Complex classes like underscore-min.js ➔ ... ➔ often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

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//     Underscore.js 1.8.3
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//     http://underscorejs.org
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//     (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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//     Underscore may be freely distributed under the MIT license.
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c.source="function("+f+"){\n"+i+"}",c},m.chain=function(n){var t=m(n);return t._chain=!0,t};var P=function(n,t){return n._chain?m(t).chain():t};m.mixin=function(n){m.each(m.functions(n),function(t){var r=m[t]=n[t];m.prototype[t]=function(){var n=[this._wrapped];return f.apply(n,arguments),P(this,r.apply(m,n))}})},m.mixin(m),m.each(["pop","push","reverse","shift","sort","splice","unshift"],function(n){var t=o[n];m.prototype[n]=function(){var r=this._wrapped;return t.apply(r,arguments),"shift"!==n&&"splice"!==n||0!==r.length||delete r[0],P(this,r)}}),m.each(["concat","join","slice"],function(n){var t=o[n];m.prototype[n]=function(){return P(this,t.apply(this._wrapped,arguments))}}),m.prototype.value=function(){return this._wrapped},m.prototype.valueOf=m.prototype.toJSON=m.prototype.value,m.prototype.toString=function(){return""+this._wrapped},"function"==typeof define&&define.amd&&define("underscore",[],function(){return m})}).call(this);
0 ignored issues
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Bug introduced by
The variable i seems to not be initialized for all possible execution paths.
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Performance Best Practice introduced by
Using new Function() to create a function is slow and difficult to debug. Such functions do not create a closure. Consider using another way to define your function.
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Coding Style Best Practice introduced by
By convention, constructors like d should be capitalized.
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Bug introduced by
The variable r seems to not be initialized for all possible execution paths.
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Bug introduced by
The variable define seems to be never declared. If this is a global, consider adding a /** global: define */ comment.

This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.

To learn more about declaring variables in Javascript, see the MDN.

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Best Practice introduced by
There is no return statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding return undefined; explicitly.
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Bug introduced by
The variable a seems to not be initialized for all possible execution paths.
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Coding Style Best Practice introduced by
By convention, constructors like m should be capitalized.
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Coding Style introduced by
As per coding-style, switch statements should have a default case.
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Coding Style introduced by
Consider using undefined instead of void(0). It is equivalent and more straightforward to read.
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Comprehensibility introduced by
Usage of the sequence operator is discouraged, since it may lead to obfuscated code.

The sequence or comma operator allows the inclusion of multiple expressions where only is permitted. The result of the sequence is the value of the last expression.

This operator is most often used in for statements.

Used in another places it can make code hard to read, especially when people do not realize it even exists as a seperate operator.

This check looks for usage of the sequence operator in locations where it is not necessary and could be replaced by a series of expressions or statements.

var a,b,c;

a = 1, b = 1,  c= 3;

could just as well be written as:

var a,b,c;

a = 1;
b = 1;
c = 3;

To learn more about the sequence operator, please refer to the MDN.

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introduced by
The for loop does not have a body. Maybe you have misplaced a semicolon. If you do wish to have a loop without a body, use an empty body {}.
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Complexity introduced by
A for in loop automatically includes the property of any prototype object, consider checking the key using hasOwnProperty.

When iterating over the keys of an object, this includes not only the keys of the object, but also keys contained in the prototype of that object. It is generally a best practice to check for these keys specifically:

var someObject;
for (var key in someObject) {
    if ( ! someObject.hasOwnProperty(key)) {
        continue; // Skip keys from the prototype.
    }

    doSomethingWith(key);
}
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Duplication introduced by
This code seems to be duplicated in your project.
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Duplication introduced by
This code seems to be duplicated in your project.
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6
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