The global
accessor property of RegExp
instances returns whether or not the g
flag is used with this regular expression.
The global
accessor property of RegExp
instances returns whether or not the g
flag is used with this regular expression.
RegExp.prototype.global
has the value true
if the g
flag was used; otherwise, false
. The g
flag indicates that the regular expression should be tested against all possible matches in a string. Each call to exec()
will update its lastIndex
property, so that the next call to exec()
will start at the next character.
Some methods, such as String.prototype.matchAll()
and String.prototype.replaceAll()
, will validate that, if the parameter is a regex, it is global. The regex's @@match
and @@replace
methods (called by String.prototype.match()
and String.prototype.replace()
) would also have different behaviors when the regex is global.
The set accessor of global
is undefined
. You cannot change this property directly.
const regex = /foo/g; console.log(regex.global); // true const str = "fooexamplefoo"; const str1 = str.replace(regex, ""); console.log(str1); // example const regex1 = /foo/; const str2 = str.replace(regex1, ""); console.log(str2); // examplefoo
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
global |
1 | 12 | 1 | 5 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1.0 | 0.10.0 | |
prototype_accessor |
48 | 12 | 38 | 35 | 1.3 | 48 | 38 | 35 | 1 | 5.0 | 48 | 1.0 | 6.0.0 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global