test("k"); // true Examples Pairing...capturing group and matches the same text as that group. For unnamed capturing...

test("ac"); // true /\1(a)/.test("a"); // true...match text with different casing from the original text. js /(b)\1/i.test("bB");...

or simply test if the string conforms to that...Assertions are constructs that test whether the string meets a certain...

the line shown: js function test() { var foo = 33; if (foo) {...+ 55; // ReferenceError } } test(); The if block is evaluated...

repo ECMAScript conformance test suite repo TC39 meeting notes...shell allows you to quickly test snippets of JavaScript code...

a test is performed to determine if...something else } Note that in the if test, a reference to noFunc is used...

To test if a certain value exists in...Description The in operator tests if a string or symbol property...

provides the attribute data-test-value via SVGElement.dataset.testValue...

const test = /(-?\d+(?:\.\d*)?)F\b/g; return s.replace(test, convert);..."-17.77777777777778C" . The regular expression test checks for any number that ends...

specified statement until the test condition evaluates to false....specified statement as long as the test condition evaluates to true....