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RegExp.prototype.toString() - JavaScript | MDN
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  6. RegExp.prototype.toString()
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RegExp.prototype.toString()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 ..

toString() .

In this article

regexObj.toString()

.

RegExp toString() Object; Object.prototype.toString(). RegExp, toString() .

: toString()

RegExp:

js
var myExp = new RegExp("a+b+c");
console.log(myExp.toString()); //  '/a+b+c/'

var foo = new RegExp("bar", "g");
console.log(foo.toString()); //  '/bar/g'

Specification
ECMAScript 2027 LanguageSpecification
# sec-regexp.prototype.tostring

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  2. RegExp
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    1. RegExp.$1-$9
    2. RegExp.input ($_)
    3. RegExp.lastMatch ($&)
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