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