aureooms-js-array/src/splice.js

array manipulation code bricks for JavaScript

import { slice } from '.' ;

export function splice ( a, ai, aj, b, bi, bj ) {

	if ( ai === undefined ) {
		ai = 0;
	}

	else if ( ai < 0 ) {
		ai += a.length;
	}

	if ( aj === undefined ) {
		aj = ai;
	}

	else if ( aj < 0 ) {
		aj += a.length;
	}

	return Array.prototype.splice.apply(
		a,
		[ai, aj - ai].concat( slice( b, bi, bj ) )
	);
}