export * from 'vue' export const install = () => {} export function set (target, key, val) { if (Array.isArray(target)) { target.length = Math.max(target.length, key) target.splice(key, 1, val) return val } target[key] = val return val } export function del (target, key) { if (Array.isArray(target)) { target.splice(key, 1) return } delete target[key] }