58 lines
1.0 KiB
Plaintext
58 lines
1.0 KiB
Plaintext
== Why is this an issue?
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jQuery doesn't cache elements for you. If you've made a selection that you might need to make again, you should save the selection in a variable rather than making the selection repeatedly.
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=== Noncompliant code example
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With the default threshold of 2
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[source,javascript]
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----
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$( "p" ).hide();
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$( "p" ).show(); // Noncompliant
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----
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=== Compliant solution
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[source,javascript]
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----
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var paragraph = $( "p" );
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paragraph.hide();
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paragraph.show();
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----
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=== Exceptions
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Stored selections are not updated when the DOM changes. Since variables may need to updated this rule ignores selections that are repeated during an assignment.
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[source,javascript]
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----
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var paragraph = $("p");
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// ...
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paragraph = $("p");
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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include::message.adoc[]
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include::parameters.adoc[]
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'''
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== Comments And Links
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(visible only on this page)
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include::comments-and-links.adoc[]
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endif::env-github,rspecator-view[]
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