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JS/JQuery detects whether the page is refreshed or closed and performs AJAX requests.

I have tried onbeforeunload() and onunload(), including the AJAX method provided online, and I have tried onbe...

From [JavaScriptdiscussion group] 2017-07-03 09:06:23 0  4  1615

javascript - How to merge the same key values ????of array objects and put the corresponding ids into an array

For example, old data: var old = [{code...}] What you want is var new = [{code...}] You want to merge objects ...

From [JavaScriptdiscussion group] 2017-06-26 10:57:10 0  2  1614

onload 事件會(huì)在頁面加載完成后立即發(fā)生是什么意思？

onload 事件會(huì)在頁面加載完成后立即發(fā)生

From [JavaScriptdiscussion group] 2016-12-17 16:05:19 0  2  1612

Isn't it okay that time is not defined? Why are we different?

From [JavaScriptdiscussion group] 2018-05-24 19:37:53 0  1  1611

前端 - JavaScript如何對(duì)后臺(tái)utf8編碼的字符串解碼？

為了防止xss以及csrf+xss的漏洞，后臺(tái)統(tǒng)一對(duì)字符串進(jìn)行了轉(zhuǎn)碼 結(jié)果如下： 原文： JavaScript高級(jí)程序設(shè)計(jì) 編碼： JavaScript高级&a...

From [JavaScriptdiscussion group] 2017-04-10 12:42:06 0  2  1611

網(wǎng)絡(luò)爬蟲 - python爬蟲的時(shí)候，需要爬取的數(shù)據(jù)出現(xiàn)在javascript的變量里，只能通過正則獲取么？

比如網(wǎng)址：http://gsxt.lngs.gov.cn/saicp...里面的內(nèi)容是：<script type="text/javascript">$(document)...

From [JavaScriptdiscussion group] 2017-04-11 11:47:04 0  3  1610

What does window.onload mean?

What does window.onload mean? Why not just use: box=document.getElementById("box")? This should also...

From [JavaScriptdiscussion group] 2019-02-26 22:31:42 0  3  1609

javascript - hover一個(gè)元素時(shí)，能否改變父元素的狀態(tài)

{代碼...} 鼠標(biāo)懸停在img標(biāo)簽上是修改div的背景顏色用hover怎么寫不能使用js，只能用css來寫，是否能夠?qū)崿F(xiàn)？

From [JavaScriptdiscussion group] 2017-04-10 16:24:05 0  12  1607

How to implement automatic audio playback in Chrome browser

Audio autoplay works in Mozilla, Microsoft Edge, and older versions of Google Chrome, but it cannot autoplay i...

From [JavaScriptdiscussion group] 2023-08-20 17:12:40 0  1  1606

javascript - H5輸入框限制只能輸入以1開頭的11位數(shù)字，用正則怎么實(shí)現(xiàn)？

onkeyup="value=value.replace(/1/g,'')"用這種方式怎么實(shí)現(xiàn)？ 0-9 ?

From [JavaScriptdiscussion group] 2017-04-10 17:25:01 0  4  1605

javascript - data:application/vnd.ms-excel設(shè)置excel名稱

window.open('data:application/vnd.ms--excel;base,' + base64data);怎么設(shè)置excel表格名稱

From [JavaScriptdiscussion group] 2017-04-11 12:53:22 0  1  1604

javascript - 關(guān)于正則表達(dá)式（零寬度負(fù)向斷言(?!p)）的一個(gè)問題

問題： 有字符串：“python php ruby javascript jsonp perhapsphpisoutdated”對(duì)于該字符串，使用純正則獲取 所有帶p 但是不能包含ph 的單詞 輸出數(shù)組 [ 'pytho...

From [JavaScriptdiscussion group] 2017-04-11 12:12:23 0  4  1604

javascript - webpack打包出現(xiàn)Unexpected token punc ?}?, expected punc ?:? [ 錯(cuò)誤

基于vux官方提供的 airyland/vux2 初始化模板。錯(cuò)誤如下 對(duì)應(yīng)的文件actions.js也很簡(jiǎn)單，就一個(gè)方法。 PS：babel也可以轉(zhuǎn)ES5

From [JavaScriptdiscussion group] 2017-04-11 12:53:53 0  2  1601

javascript - There will be conflicts when using jquery plug-in on the same page. How to solve it? ?

It's just like putting two in one page, but there is a problem when switching between two pages. How can I mod...

From [JavaScriptdiscussion group] 2017-06-12 09:30:10 0  4  1600

Javascript的typeof為什么會(huì)返回function

這是 W3C的描述：對(duì)變量或值調(diào)用 typeof 運(yùn)算符將返回下列值之一 undefined - 如果變量是 Undefined 類型的 boolean - 如果變量是 Boolean 類型的 number - 如果變量...

From [JavaScriptdiscussion group] 2017-04-11 11:33:00 0  2  1600