| 1 | var each = require('./each')
|
| 2 |
|
| 3 | /**
|
| 4 | * 根据回调过滤数据
|
| 5 | *
|
| 6 | * @param {Object} obj 对象/数组
|
| 7 | * @param {Function} iterate(item, index, obj) 回调
|
| 8 | * @param {Object} context 上下文
|
| 9 | * @return {Object}
|
| 10 | */
|
| 11 | function filter (obj, iterate, context) {
|
| 12 | var result = []
|
| 13 | if (obj && iterate) {
|
| 14 | if (obj.filter) {
|
| 15 | return obj.filter(iterate, context)
|
| 16 | }
|
| 17 | each(obj, function (val, key) {
|
| 18 | if (iterate.call(context, val, key, obj)) {
|
| 19 | result.push(val)
|
| 20 | }
|
| 21 | })
|
| 22 | }
|
| 23 | return result
|
| 24 | }
|
| 25 |
|
| 26 | module.exports = filter
|