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imdev lamaji

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albertein / move.js

Last active November 28, 2022 11:42

Move an element frome an array up or down.

	var move = function(array, element, delta) {
	var index = array.indexOf(element);
	var newIndex = index + delta;
	if (newIndex < 0 \|\| newIndex == array.length) return; //Already at the top or bottom.
	var indexes = [index, newIndex].sort(); //Sort the indixes
	array.splice(indexes[0], 2, array[indexes[1]], array[indexes[0]]); //Replace from lowest index, two elements, reverting the order
	};

	var moveUp = function(array, element) {
	move(array, element, -1);