16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
70 lines
1.3 KiB
Plaintext
70 lines
1.3 KiB
Plaintext
== Why is this an issue?
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Any variable or function declared in the global scope implicitly becomes attached to the global object (the ``++window++`` object in a browser environment). To make it explicit this variable or function should be a property of ``++window++``. When it is meant to be used just locally, it should be declared with the ``++const++`` or ``++let++`` keywords (since ECMAScript 2015) or within an Immediately-Invoked Function Expression (IIFE).
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This rule should not be activated when modules are used.
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=== Noncompliant code example
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[source,javascript]
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----
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var myVar = 42; // Noncompliant
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function myFunc() { } // 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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window.myVar = 42;
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window.myFunc = function() { };
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----
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or
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[source,javascript]
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----
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let myVar = 42;
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let myFunc = function() { }
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----
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or
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[source,javascript]
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----
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// IIFE
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(function() {
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var myVar = 42;
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function myFunc() { }
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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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=== Message
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Define this declaration in a local scope or bind explicitly the property to the global object.
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=== Highlighting
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variable or function
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'''
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== Comments And Links
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(visible only on this page)
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=== relates to: S806
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=== relates to: S2703
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endif::env-github,rspecator-view[]
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