JS傳參技巧總結(jié)
<input type="hidden" name="tc_id" value="{{tc_id}}">
這種方法一般配合ajax,上面的value使用了模板引擎
2.window['data']window['name'] = "the window object";3.使用localStorage,cookie等存儲(chǔ)
window.localStorage.setItem("name", "xiaoyueyue");window.localStorage.getItem("name")
特點(diǎn):
1、localStorage 是持久存儲(chǔ),不主動(dòng)刪除 一直存在 sessionStorage 是臨時(shí)存儲(chǔ),關(guān)閉瀏覽器數(shù)據(jù)就沒了
2、localStorage 可以多窗口共享 sessionStorage 不能多窗口共享數(shù)據(jù)
4.獲取地址欄方法自己封裝的方法
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;}
正則表達(dá)式方法
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;}5.標(biāo)簽綁定函數(shù)傳參
<!--base--> <button id="test1" onclick="alert(id)">test1</button> <!--高級(jí)--><button id="test" name="123" yue="xiaoyueyue" friend="heizi" onclick="console.log(this.getAttribute('yue'),this.getAttribute('friend'))">test</button>this拓展
使用this傳參,在使用art-template中琢磨出來的,再也不用只傳遞一個(gè)id拼接成好幾個(gè)參數(shù)了!happy!
var box = document.createElement("div");box.innerHTML = "<button id='1' data-name='xiaoyueyue' data-age='25' data-friend='heizi' onclick='alertInfo(this)'>點(diǎn)擊</button>";document.body.appendChild(box);// name,age,friendfunction alertInfo(val) { console.log(val); alert('大家好,我是' + val.dataset.name + ', 我今年' + val.dataset.age + '歲了,我的好朋友是' + val.dataset.friend + ' !')}event
既然可以使用this,那么在事件當(dāng)中event.target方法也是可以的:
根據(jù) class 獲取當(dāng)前的索引值,參數(shù)可以為 event對(duì)象
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; },6.HTML5 data-* 自定義屬性
<button data-name="xiaoyueyue">點(diǎn)擊</button>
var btn = document.querySelector("button") btn.onclick = function () { alert(this.dataset.name) }7.字符串傳參單個(gè)參數(shù)
var name = 'xiaoyueyue', age = 25;var box = document.createElement("div");box.innerHTML = '<button onclick="alertInfo('' + name + '')">點(diǎn)擊</button>';document.body.appendChild(box);// name, agefunction alertInfo(name, age, home, friend) { alert("我是" + name)}多參傳遞
var name = 'xiaoyueyue', age = '25', home = 'shanxi', friend = 'heizi';var params = """ + name + "","" + age + "","" + home + "","" + friend + """;var box = document.createElement("div");box.innerHTML = "<button onclick='alertInfo(" + params + ")'>點(diǎn)擊</button>";document.body.appendChild(box);// name, age,home,friendfunction alertInfo(name, age, home, friend) { alert("我是" + name + ',' + "我今年" + age + "歲了!")}復(fù)雜傳參
var data = [ { "name": "xiaoyueyue", "age": "25", "home": "shanxi", "friend": "heizi" }]var box = document.createElement("div");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 + "")'>點(diǎn)擊</button>";}document.body.appendChild(box);function alertInfo(id, name, age, home, friend) { alert("我是" + name + "," + friend + "是我的好朋友")}8.arguments
arguments對(duì)象是所有(非箭頭)函數(shù)中都可用的局部變量。你可以使用arguments對(duì)象在函數(shù)中引用函數(shù)的參數(shù)。它是一個(gè)類數(shù)組的對(duì)象。
<button onclick="fenpei('f233c7a290ae11e8a0f00050568b2fdd','100','0號(hào) 車用柴油(Ⅴ)')">分配</button>
function fenpei() { var args = Array.prototype.slice.call(arguments); alert("我是" + args[2] + "油品,數(shù)量為 " + args[1] + " 噸, id為 " + args[0])}
相關(guān)文章:
1. python b站視頻下載的五種版本2. 如何通過vscode運(yùn)行調(diào)試javascript代碼3. 半小時(shí)實(shí)現(xiàn)Java手?jǐn)]網(wǎng)絡(luò)爬蟲框架(附完整源碼)4. 測試模式 - XSL教程 - 55. 教你JS更簡單的獲取表單中數(shù)據(jù)(formdata)6. JAVA抽象類及接口使用方法解析7. python如何寫個(gè)俄羅斯方塊8. 《CSS3實(shí)戰(zhàn)》筆記--漸變?cè)O(shè)計(jì)(一)9. Python結(jié)合百度語音識(shí)別實(shí)現(xiàn)實(shí)時(shí)翻譯軟件的實(shí)現(xiàn)10. JavaScript設(shè)計(jì)模式之策略模式實(shí)現(xiàn)原理詳解
![半小時(shí)實(shí)現(xiàn)Java手?jǐn)]網(wǎng)絡(luò)爬蟲框架(附完整源碼)](http://www.cgvv.com.cn/attached/image/2.jpg)