feat: main.js updated

Author: HarshitaKalani

lib/node_modules/@stdlib/string/base/replace-after/lib/main.js

@@ -29,10 +29,6 @@
 * @param {string} replacement - replacement string
 * @param {string} search - search string
 * @param {integer} [fromIndex=0] - index at which to start the search
-* @throws {TypeError} first argument must be a string
-* @throws {TypeError} second argument must be a string
-* @throws {TypeError} third argument must be a string
-* @throws {TypeError} fourth argument must be an integer
 * @returns {string} substring
 *
 * @example
@@ -61,6 +57,9 @@
 */
 function replaceAfter( str, replacement, search, fromIndex ) {
 	var idx;
+	if (str === '' || search === '') {
+		return str;
+	}
 	if ( arguments.length > 3 ) {
 		idx = str.indexOf( search, fromIndex );
 	} else {