Function splice

src/util.js:9–13

(arr, item, add, byValueOnly)

}

export function splice(arr, item, add, byValueOnly) {
	let i = arr ? findWhere(arr, item, true, byValueOnly) : -1;
	if (~i) add ? arr.splice(i, 0, add) : arr.splice(i, 1);
	return i;
}

export function findWhere(arr, fn, returnIndex, byValueOnly) {
	let i = arr.length;