isRegExp()

isRegExp(value): value is RegExp

Checks if a value is a RegExp object.

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Parameters

value: unknown

The value to check.

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Returns: value is RegExp

true if the value is a RegExp, false otherwise.

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Since

2.0.0

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Example

isRegExp(/abc/);             // => true
isRegExp(new RegExp('abc')); // => true
isRegExp('abc');             // => false

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Use Cases

Validate patterns 📌

Ensure a value is a regular expression object. Useful for input validation logic where patterns can be passed.

#validate#RegExp#patterns#regex#matching#validation

if (isRegExp(pattern)) {
  const match = text.match(pattern);
}