String trimLeft() and trimRight()The trimLeft() and trimRight() methods of strings return a new string with whitespace removed from the beginning or end of the string. They're aliases for trimStart() and trimEnd().stringStringslimitedhttps://tc39.es/ecma262/multipage/additional-ecmascript-features-for-web-browsers.html#String.prototype.trimlefthttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/trimLeftjavascript.builtins.String.trimLeftjavascript.builtins.String.trimRighthttps://nowyoucanuse.com/features--string-trim-leftright.html