RegExp.input ($_)
Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The non-standard input
property is a static property of regular expressions that contains the string against which a regular expression is matched. RegExp.$_
is an alias for this property.
Description
The input
property is static, it is not a property of an individual regular expression object. Instead, you always use it as RegExp.input
or RegExp.$_.
The value of the input
property is modified whenever the searched string on the regular expression is changed and that string is matching.
Examples
Using input
and $_
var re = /hi/g;
re.test('hi there!');
RegExp.input; // "hi there!"
re.test('foo'); // new test, non-matching
RegExp.$_; // "hi there!"
re.test('hi world!'); // new test, matching
RegExp.$_; // "hi world!"
Specifications
No specification found
No specification data found for javascript.builtins.RegExp.input
.
Check for problems with this page or contribute a missing spec_url
to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
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