javascript array move element one position
// Move element '3' to where currently '1' is
const numbers = [ 1, 2, 3, 4, 5 ]
const numbersOriginal = Object.assign(numbers)
const sourceIndex = 2
const targetIndex = 0
numbers.splice(targetIndex, 0, numbers.splice(sourceIndex, 1)[0])
console.log(numbersOriginal)
console.log(numbers)javascript move item in array to another index
function moveArrayItemToNewIndex(arr, old_index, new_index) {
if (new_index >= arr.length) {
var k = new_index - arr.length + 1;
while (k--) {
arr.push(undefined);
}
}
arr.splice(new_index, 0, arr.splice(old_index, 1)[0]);
return arr;
};
//move index 1(b) to index 2(c)
console.log(moveArrayItemToNewIndex(["a","b","c","d"], 1, 2)); // returns ["a", "c", "b", "d"]Copyright © 2021 Codeinu
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