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| /**
| * 深度复制
| * @param {*} from 源对象
| * @param {*} to 目标对象
| */
| export function objectCopy (from, to) {
| if (from === null) { return null }
| if (to) {
| for (const i in to) {
| if (from[i] || typeof from[i] !== 'undefined') {
| to[i] = typeof from[i] === 'object' ? objectCopy(from[i]) : from[i]
| }
| }
| } else {
| to = from instanceof Array ? [] : {}
| for (const i in from) {
| to[i] = typeof from[i] === 'object' ? objectCopy(from[i]) : from[i]
| }
| }
| return to
| }
|
|