Completed
Pull Request — master (#20)
by Karl
05:01
created

public/js/tether.min.js   F

Complexity

Total Complexity 309
Complexity/F 2.58

Size

Lines of Code 1
Function Count 120

Duplication

Duplicated Lines 3
Ratio 300 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
wmc 309
dl 3
loc 1
rs 3.12
c 1
b 0
f 0
cc 0
nc 0
mnd 5
bc 171
fnc 120
bpm 1.425
cpm 2.575
noi 60

How to fix   Duplicated Code    Complexity   

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

Complexity

 Tip:   Before tackling complexity, make sure that you eliminate any duplication first. This often can reduce the size of classes significantly.

Complex classes like public/js/tether.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.

1
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e.options.outOfBoundsClass?e.options.outOfBoundsClass:e.getClass("out-of-bounds"),g.push(t),C.forEach(function(e){g.push(t+"-"+e)})}(),(w.indexOf("left")>=0||w.indexOf("right")>=0)&&(y.left=v.left=!1),(w.indexOf("top")>=0||w.indexOf("bottom")>=0)&&(y.top=v.top=!1),(v.top!==i.top||v.left!==i.left||y.top!==e.attachment.top||y.left!==e.attachment.left)&&(e.updateAttachClasses(y,v),e.trigger("update",{attachment:y,targetAttachment:v}))}),k(function(){e.options.addTargetClasses!==!1&&m(e.target,g,c),m(e.element,g,c)}),{top:o,left:n}}});var Y=x.Utils,a=Y.getBounds,m=Y.updateClasses,k=Y.defer;x.modules.push({position:function(t){var e=this,o=t.top,n=t.left,i=this.cache("element-bounds",function(){return a(e.element)}),r=i.height,s=i.width,f=this.getTargetBounds(),l=o+r,h=n+s,d=[];o<=f.bottom&&l>=f.top&&["left","right"].forEach(function(t){var e=f[t];(e===n||e===h)&&d.push(t)}),n<=f.right&&h>=f.left&&["top","bottom"].forEach(function(t){var e=f[t];(e===o||e===l)&&d.push(t)});var u=[],p=[],c=["left","top","right","bottom"];return u.push(this.getClass("abutted")),c.forEach(function(t){u.push(e.getClass("abutted")+"-"+t)}),d.length&&p.push(this.getClass("abutted")),d.forEach(function(t){p.push(e.getClass("abutted")+"-"+t)}),k(function(){e.options.addTargetClasses!==!1&&m(e.target,p,u),m(e.element,p,u)}),!0}});var z=function(){function t(t,e){var o=[],n=!0,i=!1,r=void 0;try{for(var s,a=t[Symbol.iterator]();!(n=(s=a.next()).done)&&(o.push(s.value),!e||o.length!==e);n=!0);}catch(f){i=!0,r=f}finally{try{!n&&a["return"]&&a["return"]()}finally{if(i)throw r}}return o}return function(e,o){if(Array.isArray(e))return e;if(Symbol.iterator in Object(e))return t(e,o);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}();return x.modules.push({position:function(t){var e=t.top,o=t.left;if(this.options.shift){var n=this.options.shift;"function"==typeof this.options.shift&&(n=this.options.shift.call(this,{top:e,left:o}));var i=void 0,r=void 0;if("string"==typeof n){n=n.split(" "),n[1]=n[1]||n[0];var s=n,a=z(s,2);i=a[0],r=a[1],i=parseFloat(i,10),r=parseFloat(r,10)}else i=n.top,r=n.left;return e+=i,o+=r,{top:e,left:o}}}}),$});
0 ignored issues
show
Complexity Best Practice introduced by
There is no return statement if this.options.shift is false. Are you sure this is correct? If so, consider adding return; explicitly.

This check looks for functions where a return statement is found in some execution paths, but not in all.

Consider this little piece of code

function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined

The function isBig will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return undefined.

This behaviour may not be what you had intended. In any case, you can add a return undefined to the other execution path to make the return value explicit.

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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. m is already defined in line 1 as a function. While this will work, it can be very confusing.
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Unused Code introduced by
The parameter o is not used and could be removed.

This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.

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Comprehensibility Naming Best Practice introduced by
The variable t already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Bug introduced by
The variable innerWidth seems to be never declared. If this is a global, consider adding a /** global: innerWidth */ 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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Unused Code introduced by
The assignment to variable a seems to be never used. Consider removing it.
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Unused Code introduced by
The assignment to variable h seems to be never used. Consider removing it.
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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 Naming Best Practice introduced by
The variable u already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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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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Unused Code introduced by
The assignment to variable i seems to be never used. Consider removing it.
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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. d is already defined in line 1 as a function. While this will work, it can be very confusing.
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Comprehensibility Naming Best Practice introduced by
The variable d already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. f is already defined in line 1 as a function. While this will work, it can be very confusing.
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Unused Code introduced by
The assignment to variable S seems to be never used. Consider removing it.
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Coding Style Best Practice introduced by
Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later.

Consider:

if (a > 0)
    b = 42;

If you or someone else later decides to put another statement in, only the first statement will be executed.

if (a > 0)
    console.log("a > 0");
    b = 42;

In this case the statement b = 42 will always be executed, while the logging statement will be executed conditionally.

if (a > 0) {
    console.log("a > 0");
    b = 42;
}

ensures that the proper code will be executed conditionally no matter how many statements are added or removed.

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Comprehensibility Naming Best Practice introduced by
The variable e already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. s is already defined in line 1 as a function. While this will work, it can be very confusing.
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Unused Code introduced by
The assignment to variable e seems to be never used. Consider removing it.
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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. a is already defined in line 1 as a function. While this will work, it can be very confusing.
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Bug introduced by
The variable Symbol seems to be never declared. If this is a global, consider adding a /** global: Symbol */ 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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Complexity Best Practice introduced by
There is no return statement if "scroll-handle" === this.targetModifier is false. Are you sure this is correct? If so, consider adding return; explicitly.

This check looks for functions where a return statement is found in some execution paths, but not in all.

Consider this little piece of code

function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined

The function isBig will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return undefined.

This behaviour may not be what you had intended. In any case, you can add a return undefined to the other execution path to make the return value explicit.

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Comprehensibility Naming Best Practice introduced by
The variable z already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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introduced by
The function n does not seem to be used and can be removed.
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Bug introduced by
The variable pageXOffset seems to be never declared. If this is a global, consider adding a /** global: pageXOffset */ 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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Comprehensibility Bug introduced by
Usage of the throw statement in a finally clause is discouraged. This construct may mask errors and makes debugging difficult.
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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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Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. l is already defined in line 1 as a function. While this will work, it can be very confusing.
Loading history...
Comprehensibility Naming Best Practice introduced by
The variable m already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Bug introduced by
The variable innerHeight seems to be never declared. If this is a global, consider adding a /** global: innerHeight */ 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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Unused Code introduced by
The assignment to variable d seems to be never used. Consider removing it.
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Unused Code introduced by
The parameter t is not used and could be removed.

This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.

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Comprehensibility Naming Best Practice introduced by
The variable E already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Comprehensibility Naming Best Practice introduced by
The variable h already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

Loading history...
Unused Code introduced by
The parameter e is not used and could be removed.

This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.

Loading history...
Bug introduced by
The variable performance seems to be never declared. If this is a global, consider adding a /** global: performance */ 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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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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Bug introduced by
The variable S seems to be never initialized.
Loading history...
Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. u is already defined in line 1 as a function. While this will work, it can be very confusing.
Loading history...
Bug introduced by
The variable pageYOffset seems to be never declared. If this is a global, consider adding a /** global: pageYOffset */ 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.

Loading history...
Complexity Best Practice introduced by
There is no return statement if this.enabled is false. Are you sure this is correct? If so, consider adding return; explicitly.

This check looks for functions where a return statement is found in some execution paths, but not in all.

Consider this little piece of code

function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined

The function isBig will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return undefined.

This behaviour may not be what you had intended. In any case, you can add a return undefined to the other execution path to make the return value explicit.

Loading history...
Comprehensibility Naming Best Practice introduced by
The variable r already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Unused Code introduced by
The assignment to variable r seems to be never used. Consider removing it.
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Comprehensibility Naming Best Practice introduced by
The variable k already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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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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Comprehensibility Naming Best Practice introduced by
The variable _ already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Comprehensibility Naming Best Practice introduced by
The variable f already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

Loading history...
Comprehensibility Naming Best Practice introduced by
The variable Y already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

Loading history...
Comprehensibility Naming Best Practice introduced by
The variable l already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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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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Unused Code introduced by
The assignment to variable s seems to be never used. Consider removing it.
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Unused Code introduced by
The assignment to variable l seems to be never used. Consider removing it.
Loading history...
Comprehensibility Naming Best Practice introduced by
The variable i already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

Loading history...
Unused Code introduced by
The assignment to variable t seems to be never used. Consider removing it.
Loading history...
Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. r is already defined in line 1 as a function. While this will work, it can be very confusing.
Loading history...
Comprehensibility introduced by
It seems like you are trying to overwrite a function name here. h is already defined in line 1 as a function. While this will work, it can be very confusing.
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Coding Style Comprehensibility Best Practice introduced by
Empty catch clauses should be used with caution; consider adding a comment why this is needed.
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Unused Code introduced by
The assignment to variable n seems to be never used. Consider removing it.
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Comprehensibility Naming Best Practice introduced by
The variable s already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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Comprehensibility Naming Best Practice introduced by
The variable a already seems to be declared on line 1. Consider using another variable name or omitting the var keyword.

This check looks for variables that are declared in multiple lines. There may be several reasons for this.

In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs.

If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared.

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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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Duplication introduced by
This code seems to be duplicated in your project.
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