Returning values out of for loop in javascript

Question

I have the following function:

  function getId(a){
    var aL = a.length;
    for(i = 0; i < aL; i++ ){
      return a[i][2].split(\":\", 1)[0];
    }            


        

Answer 1

• The return statement breaks the loop once it is executed. Therefore consider putting the return statement outside the loop.
• Since you want to return a string, you will create a variable and assign it to an empty string.(This is where will append/add results from the loop.)
• return the string variable.

So final code will look like...

function getId(a){
    var result = '';
    var aL = a.length;
    for(i = 0; i < aL; i++ ){
      result += a[i][2].split(":", 1)[0];
    } 
    return result;
  }