how to iterate a string array and concat elements together in javascript?

Question

getPath(array, 0) will return "A"
getPath(array, 1) will return "AB"
getPath(array, 2) will return "ABC"

function getPath(arr, idx){  
  // todo ...     
}  
var array = ["A","B","C"];

Possible duplicate of Join Array from startIndex to endIndex — Abhishek
– Abhishek, Commented Jun 27, 2016 at 21:23

boehm_s · Accepted Answer · 2016-06-27 21:16:13Z

2

function getPath(arr, idx){  
  return (arr.slice(0, idx+1).join(""));  
}

Yes, you're right, thx Redu

edited Jun 27, 2016 at 21:16

answered Jun 27, 2016 at 21:14

boehm_s

5,5644 gold badges36 silver badges46 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

faheem farhan · Accepted Answer · 2016-06-27 21:32:09Z

0

Plain old for loop style:

 function getPath(arr, idx){
   var output="";  
    for(i=0;i<idx;i++){
    output= output + array[i]
    }
  return output;
}  
var array = ["A","B","C"];

answered Jun 27, 2016 at 21:32

faheem farhan

4112 silver badges10 bronze badges

Collectives™ on Stack Overflow

how to iterate a string array and concat elements together in javascript?

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related