Question

How to move all zeroes to end of array in JavaScript

Answer 1

function move_zeroes_to_end(arr) { 
    const size = arr.length;
     
    let j = 0;
    for (let i = 0; i < size; i++) {
        if (arr[i] > 0) {
           let tmp = arr[i];
           arr[i] = arr[j];
           arr[j] = tmp;
           j++;
        }
    }
} 
 
 
const arr = [0, 8, 0, 0, 0, 7, 15, 0, 0, 4, 6, 99];
    
move_zeroes_to_end(arr); 
  
console.log(arr);
 
 
 
 
/*
run:
 
[8, 7, 15, 4, 6, 99, 0, 0, 0, 0, 0, 0]
  
*/

 

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