javascript - Replace multiple string items in the array -

i have array shows value "135_1,undefined,undefined"

i have find "undefined" in above array , replace "0_0".undefined can occur multiple times in array.

i used

 var = myvariable.replace("undefined", "0_0");     alert(extra); 

but have use 3 times every single time can search 1 , replace it.

i have used this::

  (var = 0; < myvariable.length; i++) {         alert(myvariable[i]);         myvariable[i] = myvariable[i].replace(/undefined/g, '0_0');     }     alert(myvariable); 

but did'nt solved purpose.

string.prototype.replace method accessible strings. undefined not string.

this might you.

for (var i=0, len=arr.length; i<len; i++) {   if (arr[i] === undefined) {     arr[i] = "0_0";   } }  alert(json.stringify(arr)); 

---

you use array.prototype.map this. note, works in ie >= 9

arr = arr.map(function(elem) {   return elem === undefined ? "0_0" : elem; });