24.159. RegExp.test( ): test whether a string matches a patternECMAScript v324.159.1. Synopsisregexp.test(string) 24.159.1.1. Arguments
24.159.1.2. Returnstrue if string contains text that matches regexp; false otherwise. 24.159.1.3. Throws
24.159.2. Descriptiontest( ) tests string to see if it contains text that matches regexp. If so, it returns true; otherwise, it returns false. Calling the test( ) method of a RegExp r and passing it the string s is equivalent to the following expression: (r.exec(s) != null) 24.159.3. Examplevar pattern = /java/i; pattern.test("JavaScript"); // Returns true pattern.test("ECMAScript"); // Returns false 24.159.4. See AlsoRegExp.exec( ), RegExp.lastIndex, String.match( ), String.replace( ), String.substring( ); Chapter 11 |