32 lines
564 B
Plaintext
32 lines
564 B
Plaintext
This rule checks that the var keyword is not used to declare a variable with a name that is already in use. It applies to already defined variables as well as to function parameters.
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This use of duplicate name is often unwanted and can lead to bugs and more generally to confusing code :
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== Noncompliant Code Example
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[source,text]
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----
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var a = 'foo';
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var a = 'bar'; // Noncompliant
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function f(e) {
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var e = "event"; // Noncompliant
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}
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----
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== Compliant Solution
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[source,text]
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----
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var a = 'foo';
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var b = 'bar';
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function f(e) {
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var g = "event";
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}
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----
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