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.
48 lines
852 B
Plaintext
48 lines
852 B
Plaintext
== Why is this an issue?
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The ``++in++`` operator tests whether the specified property is in the specified object.
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If the right operand is a of primitive type (i.e., not an object) the ``++in++`` operator raises a ``++TypeError++``.
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=== Noncompliant code example
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[source,javascript]
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----
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var x = "Foo";
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"length" in x; // Noncompliant: TypeError
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0 in x; // Noncompliant: TypeError
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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 x = new String("Foo");
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"length" in x; // true
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0 in x; // true
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"foobar" in x; // false
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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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TypeError can be thrown as this operand might have primitive type.
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=== Highlighting
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Primary: The right operand.
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Secondary: the operator.
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endif::env-github,rspecator-view[]
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