51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
var helperDeleteProperty = require('./helperDeleteProperty')
|
|
|
|
var isPlainObject = require('./isPlainObject')
|
|
var isObject = require('./isObject')
|
|
var isArray = require('./isArray')
|
|
var isNull = require('./isNull')
|
|
var assign = require('./assign')
|
|
var objectEach = require('./objectEach')
|
|
|
|
/**
|
|
* 清空对象
|
|
*
|
|
* @param {Object} obj 对象
|
|
* @param {*} defs 默认值,如果不传（清空所有属性）、如果传对象（清空并继承)、如果传值(给所有赋值)
|
|
* @param {Object/Array} assigns 默认值
|
|
* @return {Object}
|
|
*/
|
|
function clear (obj, defs, assigns) {
|
|
if (obj) {
|
|
var len
|
|
var isDefs = arguments.length > 1 && (isNull(defs) || !isObject(defs))
|
|
var extds = isDefs ? assigns : defs
|
|
if (isPlainObject(obj)) {
|
|
objectEach(obj, isDefs ? function (val, key) {
|
|
obj[key] = defs
|
|
} : function (val, key) {
|
|
helperDeleteProperty(obj, key)
|
|
})
|
|
if (extds) {
|
|
assign(obj, extds)
|
|
}
|
|
} else if (isArray(obj)) {
|
|
if (isDefs) {
|
|
len = obj.length
|
|
while (len > 0) {
|
|
len--
|
|
obj[len] = defs
|
|
}
|
|
} else {
|
|
obj.length = 0
|
|
}
|
|
if (extds) {
|
|
obj.push.apply(obj, extds)
|
|
}
|
|
}
|
|
}
|
|
return obj
|
|
}
|
|
|
|
module.exports = clear
|