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updatein

v1.0.1

Published

模仿`immutablejs`中的`updateIn`函数,抛弃`immutablejs`其他不需要(嫌弃`immutablejs`压缩过后体积庞大,也用不到其他方法的情况下)的东西,不再需要`fromJS` to `toString`,使用`updateIn`可以一步到位的更新对象属性。 `updateIn`在更新属性的同时不改变旧对象,每次操作都会返回新对象,未修改的属性会继续使用旧对象的引用。

Downloads

4

Readme

updateIn

模仿immutablejs中的updateIn函数,抛弃immutablejs其他不需要(嫌弃immutablejs压缩过后体积庞大,也用不到其他方法的情况下)的东西,不再需要fromJS to toString,使用updateIn可以一步到位的更新对象属性。 updateIn在更新属性的同时不改变旧对象,每次操作都会返回新对象,未修改的属性会继续使用旧对象的引用。

Getting started

使用npm安装updateIn

npm install updatein

example

import updateIn from 'updatein'

var state = {
	userInfo : {
		username : "",
		password : "",
		phone : "",
		age : 0,
		firstName : "",
		lastName : "",
		headPic : "",
	},
	dataList : [],
	form : {
		phone : "",
		veriCode : "",
	},
}

var state1 = updateIn( state, ["userInfo","username"],"updateIn")
//state1.userInfo.username === "updateIn"


var dataList = [{
	productName : "product_name",
	productCode : "NO123456",
},{
	productName : "product_name",
	productCode : "NO123456",
},{
	productName : "product_name",
	productCode : "NO123456",
}]
var state2 = updateIn( state1, ["dataList"], dataList)
//state2.dataList === dataList

var state3 = updateIn( state2, ["form"], { phone : "136xxxxxxxx", veriCode : "342030" } )
//state3.dataList === state2.dataList
//state2.userInfo === state1.userInfo