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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 trim() .
const greeting = " Hello world! ";
console.log(greeting);
// Expected output: " Hello world! ";
console.log(greeting.trim());
// Expected output: "Hello world!";
trim()
.
str , . str .
trim() str .
const str = " foo ";
console.log(str.trim()); // 'foo'
| Specification |
|---|
| ECMAScript 2027 LanguageSpecification # sec-string.prototype.trim |
This page was last modified on 2025 2 11 by MDN contributors.
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