Code sharing of string replaceAll function implemented in JavaScript_javascript skills

Since the replace function in JavaScript cannot replace all matching strings, it is necessary to add a method to the String class. The code is as follows:

Copy code The code is as follows:

String.prototype.replaceAll = function(reallyDo, replaceWith, ignoreCase) {
If (!RegExp.prototype.isPrototypeOf(reallyDo)) {
          return this.replace(new RegExp(reallyDo, (ignoreCase ? "gi": "g")), replaceWith); } else {
          return this.replace(reallyDo, replaceWith);                              }  
}