| [ Web Proxy ] |
| Viewing: https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/String/search | [Back] [Original] |
Get to know MDN better
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[Symbol.search]()
regexp g search() lastIndex 0 search() RegExp.prototype[Symbol.search]()
search()
-1
const str = "hey JudE";
const re = /[A-Z]/;
const reDot = /[.]/;
console.log(str.search(re)); // 4J
console.log(str.search(reDot)); // -1.
| ECMAScript 2027 LanguageSpecification # sec-string.prototype.search |
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()String.prototype.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[Symbol.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()| Web Proxy Viewer | New URL | Original Page |