Question

How to convert an int into an array of digits in JavaScript

Answer 1

let n = 78910;
let arr = new Array(n.toString().length);
  
for (let i = arr.length - 1; i >= 0; i--) {
    arr[i] = parseInt(n % 10);
    n = n / 10;
}

for (let i = 0; i < arr.length; i++) {
    console.log("arr[" + i + "] = " + arr[i]);
}


 
 
/*
run:
 
arr[0] = 7
arr[1] = 8
arr[2] = 9
arr[3] = 1
arr[4] = 0
 
*/

 

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Answer 2

let n = 78910;

let arr = n.toString().split('');

for (let i = 0; i < arr.length; i++) {
    console.log("arr[" + i + "] = " + arr[i]);
}


 
 
/*
run:
 
arr[0] = 7
arr[1] = 8
arr[2] = 9
arr[3] = 1
arr[4] = 0
 
*/

 

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