js中传递参数的方法总结（附代码）

window['name'] = "the window object";

window.localStorage.setItem("name", "xiaoyueyue");
window.localStorage.getItem("name")

1、localStorage 是持久存储，不主动删除 一直存在 
 sessionStorage 是临时存储,关闭浏览器数据就没了
2、localStorage 可以多窗口共享
 sessionStorage 不能多窗口共享数据

function parseParam(url) {
 var paramArr = decodeURI(url).split("?")[1].split("&"),
 obj = {};
 for (var i = 0; i < paramArr.length; i++) {
 var item = paramArr[i];
 if (item.indexOf("=") != -1) {
 var tmp = item.split("=");
 obj[tmp[0]] = tmp[1];
 } else {
 obj[item] = true;
 }
 }
 return obj;

}

function GetQueryString(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]); return null;
}

<!--base-->
 <button id="test1" onclick="alert(id)">test1</button>
 
<!--高级-->
<button id="test" name="123" yue="xiaoyueyue" friend="heizi" onclick="console.log(this.getAttribute('yue'),this.getAttribute('friend'))">test</button>

var box = document.createElement("p");
box.innerHTML = "<button id='1' data-name='xiaoyueyue' data-age='25' data-friend='heizi' onclick='alertInfo(this)'>点击</button>";
document.body.appendChild(box);


// name,age,friend
function alertInfo(val) {
 console.log(val);
 alert('大家好,我是' + val.dataset.name + ', 我今年' + val.dataset.age + '岁了，我的好朋友是' + val.dataset.friend + ' !')

}

 var getIndexByClass = function (param) {
 var element = param.classname ? param : param.target;
 var className = element.classname;
 var domArr = Array.prototype.slice.call(document.querySelectorAll('.' + className));
 for (var index = 0; index < domArr.length; index++) {
 if (domArr[index] === element) {
 return index;
 }
 }
 return -1;
 },

<button data-name="xiaoyueyue">点击</button>

 var btn = document.querySelector("button")
 btn.onclick = function () {
 alert(this.dataset.name)
 }

var name = 'xiaoyueyue',
 age = 25;

var box = document.createElement("p");
box.innerHTML = '<button onclick="alertInfo(\'' + name + '\')">点击</button>';
console.log(box)
document.body.appendChild(box);


// name, age
function alertInfo(name, age, home, friend) {
 alert("我是" + name)
}

 var name = 'xiaoyueyue',
 age = '25',
 home = 'shanxi',
 friend = 'heizi';

var params = """ + name + "","" + age + "","" + home + "","" + friend + """;
var box = document.createElement("p");
box.innerHTML = "<button onclick='alertInfo(" + params + ")'>点击</button>";
console.log(box)
document.body.appendChild(box);


// name, age,home,friend
function alertInfo(name, age, home, friend) {
 alert("我是" + name + ',' + "我今年" + age + "岁了！")
}

var data = [
 {
 "name": "xiaoyueyue",
 "age": "25",
 "home": "shanxi",
 "friend": "heizi"
 }

]

var box = document.createElement("p");

for (var i = 0; i < data.length; i++) {
 box.innerHTML = "<button id='btn' onclick='alertInfo(id,\"" + data[i].name + "\",\"" + data[i].age + "\",\"" + data[i].home + "\",\"" + data[i].friend + "\")'>点击</button>";
}

document.body.appendChild(box);

function alertInfo(id, name, age, home, friend) {
 alert("我是" + name + "," + friend + "是我的好朋友")
}

<button onclick="fenpei('f233c7a290ae11e8a0f00050568b2fdd','100','0号 车用柴油(Ⅴ)')">分配</button>

function fenpei() {
 var args = Array.prototype.slice.call(arguments);
 alert("我是" + args[2] + "油品，数量为 " + args[1] + " 吨， id为 " + args[0])

}