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RegExp.prototype.test() - JavaScript | MDN
test(str)); // Expected output: false Syntax js test(str)...match. Examples Using test() This example tests if "hello" is contained...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/testRegistered: Fri Dec 12 02:13:38 UTC 2025 - Last Modified: Thu Dec 11 01:09:13 UTC 2025 - 154.1K bytes - Viewed (0) -
Function.prototype.toString() - JavaScript | MDN
function* g() {} test(f); // "function f() {}" test(A); // "class...{ a() {} }" test(g); // "function* g() {}" test((a) => a); //...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/toStringRegistered: Fri Dec 12 00:52:32 UTC 2025 - Last Modified: Thu Dec 11 01:09:10 UTC 2025 - 152.7K bytes - Viewed (0) -
RegExp.prototype.sticky - JavaScript | MDN
Because test() is a simple wrapper around exec() , test() would...regex.test(str); // true regex.lastIndex = 5; regex.test(str);...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/stickyRegistered: Fri Dec 12 02:14:12 UTC 2025 - Last Modified: Thu Dec 11 01:09:13 UTC 2025 - 155.9K bytes - Viewed (0) -
Assertions - JavaScript | MDN
by the word "test", but we do not include "test" in the match...regex = /First(?= test)/g; console.log("First test".match(regex));...developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions/AssertionsRegistered: Fri Dec 12 01:48:28 UTC 2025 - Last Modified: Thu Dec 11 01:09:07 UTC 2025 - 193.9K bytes - Viewed (0) -
Labeled statement - JavaScript | MDN
items) { for (const test of tests) { if (!test.pass(item)) { continue...true; for (const test of tests) { if (!test.pass(item)) { passed...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/labelRegistered: Fri Dec 12 01:18:01 UTC 2025 - Last Modified: Thu Dec 11 01:09:18 UTC 2025 - 194.3K bytes - Viewed (0) -
Character escape: \n, \u{...} - JavaScript | MDN
test("\x10"); // true /[\c_]/.test("\x1f"); // true...true /[\c*]/.test("\\"); // true /\c/.test("\\c"); // true /\c0/.test("\\c0");...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Character_escapeRegistered: Fri Dec 12 01:13:15 UTC 2025 - Last Modified: Thu Dec 11 01:09:18 UTC 2025 - 188.1K bytes - Viewed (0) -
void operator - JavaScript | MDN
executed" void function test() { console.log("test function executed");...executed"); }; try { test(); } catch (e) { console.log("test function is...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/voidRegistered: Fri Dec 12 01:07:30 UTC 2025 - Last Modified: Thu Dec 11 01:09:18 UTC 2025 - 190.1K bytes - Viewed (0) -
isNaN() - JavaScript | MDN
5em;-webkit-text-decoration:none;text-decoration:none;v...ing:.5em;-webkit-text-decoration:none;text-decoration:none;v...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isNaNRegistered: Fri Dec 12 00:50:44 UTC 2025 - Last Modified: Thu Dec 11 01:09:11 UTC 2025 - 189.2K bytes - Viewed (0) -
Object.prototype.__proto__ - JavaScript | MDN
const test = new Test(); console.log(test.__proto__ === Test.prototype);...shapeC.__proto__); // false js function Test() {} Test.prototype.myName = function...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/protoRegistered: Fri Dec 12 01:22:23 UTC 2025 - Last Modified: Thu Dec 11 01:09:13 UTC 2025 - 154.2K bytes - Viewed (0) -
instanceof - JavaScript | MDN
The object to test. constructor Constructor to test against. Exceptions...ing:.5em;-webkit-text-decoration:none;text-decoration:none;v...developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/instanceofRegistered: Fri Dec 12 01:00:52 UTC 2025 - Last Modified: Thu Dec 11 01:09:17 UTC 2025 - 198.6K bytes - Viewed (0)