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Moving all zeroes present in the array to the end in JavaScript
Problem
We are required to write a JavaScript function that takes in an array of literals that might contain some 0s. Our function should tweak the array such that all the zeroes are pushed to the end and all non-zero elements hold their relative positions.
Example
Following is the code −
const arr = [5, 0, 1, 0, -3, 0, 4, 6];
const moveAllZero = (arr = []) => {
const res = [];
let currIndex = 0;
for(let i = 0; i < arr.length; i++){
const el = arr[i];
if(el === 0){
res.push(0);
}else{
res.splice(currIndex, undefined, el);
currIndex++;
};
};
return res;
};
console.log(moveAllZero(arr));Output
Following is the console output −
[ 5, 1, -3, 4, 6, 0, 0, 0 ]
Updated on: 17-Apr-2021
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