71 lines
1.1 KiB
Plaintext
71 lines
1.1 KiB
Plaintext
== Why is this an issue?
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include::../description.adoc[]
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=== Noncompliant code example
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[source,javascript]
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----
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function doSomething(a, b) { // "a" is unused
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return compute(b);
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}
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----
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=== Compliant solution
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[source,javascript]
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----
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function doSomething(b) {
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return compute(b);
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}
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----
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or
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[source,javascript]
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----
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function doSomething(_a, b) {
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return compute(b);
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}
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----
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=== Exceptions
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When ``++arguments++`` is used in the function body, no parameter is reported as unused.
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[source,javascript]
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----
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function doSomething(a, b, c) {
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compute(arguments);
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}
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----
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Also, the rule ignores all parameters whose name starts with an underscore (``++_++``).
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This is a common practice to acknowledge the fact that some parameter is unused (e.g. in TypeScript compiler).
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[source,javascript]
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----
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function doSomething(_a, b) {
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return compute(b);
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}
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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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'''
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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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