31 lines
716 B
JavaScript
31 lines
716 B
JavaScript
var each = require('../base/each')
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var isFunction = require('../base/isFunction')
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var property = require('../function/property')
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/**
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* 指定方法后的返回值组成的新对象
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*
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* @param {Object} obj 对象/数组
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* @param {Function} iterate(item, index, obj) 回调
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* @param {Object} context 上下文
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* @return {Object}
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*/
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function objectMap (obj, iterate, context) {
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var result = {}
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if (obj) {
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if (iterate) {
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if (!isFunction(iterate)) {
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iterate = property(iterate)
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}
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each(obj, function (val, index) {
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result[index] = iterate.call(context, val, index, obj)
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})
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} else {
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return obj
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}
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}
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return result
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}
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module.exports = objectMap
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