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This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 7.
String search()
.
const paragraph = "I think Ruth's dog is cuter than your dog!";
// Anything not a word character, whitespace or apostrophe
const regex = /[^\w\s']/g;
console.log(paragraph.search(regex));
// Expected output: 41
console.log(paragraph[paragraph.search(regex)]);
// Expected output: "!"
search(regexp)
( -1).
String.prototype.search() . Symbol.search . RegExp.prototype[@@search]() .
regexp g search() , lastIndex 0 . search() RegExp.prototype[@@search]() .
search() .
( ) (-1) .
const str = "hey JudE";
const re = /[A-Z]/;
const reDot = /[.]/;
console.log(str.search(re)); // "J" 4 .
console.log(str.search(reDot)); // '.' -1 .
| Specification |
|---|
| ECMAScript 2027 LanguageSpecification # sec-string.prototype.search |
String.prototype.search in core-js with fixes and implementation of modern behavior like Symbol.search supportString.prototype.match()RegExp.prototype.exec()RegExp.prototype[@@search]()This page was last modified on 2025 6 24 by MDN contributors.
StringString.prototype.anchor()String.prototype.at()String.prototype.big()String.prototype.blink()String.prototype.bold()String.prototype.charAt()String.prototype.charCodeAt()String.prototype.codePointAt()String.prototype.concat()String.prototype.endsWith()String.prototype.fixed()String.prototype.fontcolor()String.prototype.fontsize()String.prototype.includes()String.prototype.indexOf()String.prototype.isWellFormed()String.prototype.italics()String.prototype.lastIndexOf()String.prototype.link()String.prototype.localeCompare()String.prototype.match()matchAll()String.prototype.normalize()String.prototype.padEnd()String.prototype.padStart()String.prototype.repeat()String.prototype.replace()String.prototype.replaceAll()String.prototype.search()String.prototype.slice()String.prototype.small()String.prototype.split()String.prototype.startsWith()String.prototype.strike()String.prototype.sub()String.prototype.substr()String.prototype.substring()String.prototype.sup()String.prototype.toLocaleLowerCase()String.prototype.toLocaleUpperCase()String.prototype.toLowerCase()String.prototype.toString()String.prototype.toUpperCase()String.prototype.toWellFormed()String.prototype.trim()String.prototype.trimEnd()String.prototype.trimStart()String.prototype.valueOf()String.prototype[@@iterator]()Object/FunctionObject.prototype.__defineGetter__()Object.prototype.__defineSetter__()Object.prototype.__lookupGetter__()Object.prototype.__lookupSetter__()Object.prototype.hasOwnProperty()Object.prototype.isPrototypeOf()Object.prototype.propertyIsEnumerable()Object.prototype.toLocaleString()Object.prototype.toString()Object.prototype.valueOf()Your blueprint for a better internet.
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