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540 views

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javascript - 当提交更改时，如何显示“您确定要离开此页面吗？”(How to show the “Are you sure you want to navigate away from this page?” when changes committed?)

Here in stackoverflow, if you started to make changes then you attempt to navigate away from the page, a javascript confirm button ... 人都可以发一个例子吗) ask by Shimmy translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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javascript - 如何解决此路由错误：“ Route.post（）需要回调函数，但得到了[object Undefined]”(how to solve this route error: “Route.post() requires a callback function but got a [object Undefined]”)

I am adding a new contactUs page in my project which is having a form data to store to the mongoDB collection. (我在项目中添加 ... 请帮帮我我没弄错) ask by Chaudhary Ali Sandhu translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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375 views

1 answer

javascript - 如何引用加载了当前正在执行的脚本的脚本标签？(How may I reference the script tag that loaded the currently-executing script?)

How can I reference the script element that loaded the javascript that is currently running? (如何引用加载当前正在运行的javascript的 ... " src="new_script2.js"></script> ask by translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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468 views

1 answer

javascript - 创建跨浏览器Gmail扩展的最佳方法是什么？ [关闭](What is the best way to create a cross browser Gmail extension? [closed])

(Closed) . ( (已关闭) ) This question needs to be more focused . (这个问题需要更加集中 ) It is not currently accepting answers. ( ... to proceed? (最好的进行方法是什么？) ask by Mohit translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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516 views

1 answer

javascript - 如何检测浏览器后退按钮事件-跨浏览器(How to Detect Browser Back Button event - Cross Browser)

How do you definitively detect whether or not the user has pressed the back button in the browser? (您如何确定用户是否按下浏览器中的后退按钮？) ... 什么浏览器后退按钮不触发自己的事件！？) ask by Xarus translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

1 answer

javascript - 向JSON对象添加新的数组元素(Adding a new array element to a JSON object)

I have a JSON format object I read from a JSON file that I have in a variable called teamJSON, that looks like this: (我有 ... (任何帮助表示赞赏 ) ask by Charles Wyke-Smith translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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580 views

1 answer

javascript - 在Firefox插件弹出窗口中禁用任何对象的拖动(Disable drag for any object in firefox addon popup)

I am developping an extension on Chrome / Firefox which has a popup composed of different graphic ... ?id=0B4k6nM18722gNjY5VjVpREhpRTQ) ask by Nucktrooper translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

1 answer

javascript - 检测设备是否为iOS(Detect if device is iOS)

I'm wondering if it's possible to detect whether a browser is running on iOS, similar to how you can feature detect ... / iPhone /非Flash设备) ask by SparrwHawk translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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421 views

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javascript - 如何下载给定相对文件路径（角）的文件？(How to download a file given a relative file path (Angular)?)

This is my html: (这是我的html：) <button class="btn" (click)="generatePdf()">PDF</button> When the button is clicked, ... your help! (谢谢你的帮助！) ask by Beatrice translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

1 answer

javascript - jQuery - 通过文本描述设置选择控件的选定值(jQuery - setting the selected value of a select control via its text description)

I have a select control, and in a javascript variable I have a text string. (我有一个选择控件，在一个javascript变量中我有一个文本字符串 ) ... 是我的大脑在星期五下午也可以解决它 ) ask by DanSingerman translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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430 views

1 answer

javascript - Lodash从数组中删除重复项(Lodash remove duplicates from array)

This is my data: (这是我的数据：) [ { url: 'www.example.com/hello', id: "22" }, { url: 'www.example.com/hello', id: "22" }, ... 据集更大，并且具有更多的键，但是概念应该相同 ) ask by ChrisRich translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

javascript - 如何检测用户是否已经登录Firebase？(How do I detect if a user is already logged in Firebase?)

I'm using the firebase node api in my javascript files for Google login. (我在我的JavaScript文件中使用firebase节点api进行Google登录 ) ... 否已经有一个登录用户？) ask by Jophin Joseph translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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430 views

1 answer

javascript - node.js中“process.stdout.write”和“console.log”之间的区别？(Difference between “process.stdout.write” and “console.log” in node.js?)

What is the difference between "process.stdout.write" and "console.log" in node.js? (node.js中 process.stdout.write 和 console. ... is that? (这是为什么？) ask by ajsie translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

1 answer

javascript - 如何在ReactJS中渲染通过道具的对象？(How to render object that pass through props in ReactJS?)

I am trying to render the data (object) that comes through props. (我正在尝试渲染通过道具来的数据（对象） ) However, I have got the ... "01/12/2020", time: "21:00" } ask by Daniel translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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414 views

1 answer

javascript - 使用“ let”和“ var”有什么区别？(What's the difference between using “let” and “var”?)

ECMAScript 6 introduced the let statement . (ECMAScript 6引入了let语句 ) I've heard it that it's described as a "local" variable, ... (什么时候应该let在使用var ？) ask by TM. translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

1 answer

javascript - 检查字符串是否为日期值(Check if a string is a date value)

What is an easy way to check if a value is a valid date, any known date format allowed. (检查值是否为有效日期（允许使用任何已知的日期格式） ... also be allowed. (因为时间戳也将被允许 ) ask by Thys translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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255 views

1 answer

javascript - 元素按“ for（…in…）”循环排序(Elements order in a “for (… in …)” loop)

Does the "for in" loop in Javascript loop through the hashtables/elements in the order they are declared? (JavaScript中的 for ... B： World 之前？) ask by chakrit translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

1 answer

javascript - 元素按“ for（…in…）”循环排序(Elements order in a “for (… in …)” loop)

Does the "for in" loop in Javascript loop through the hashtables/elements in the order they are declared? (JavaScript中的 for ... B： World 之前？) ask by chakrit translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

253 views

1 answer

javascript - AngularJS：清除$ watch(AngularJS : Clear $watch)

I have a watch function in my AngularJS application. (我的AngularJS应用程序中有一个watch功能 ) $scope.$watch('quartzCrystal', function () { ... ? (我怎样才能做到这一点？) ask by kamaci translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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309 views

1 answer

javascript - 使用HTML5和JavaScript从视频捕获帧(Capture frames from video with HTML5 and JavaScript)

I want to capture a frame from video every 5 seconds. (我想每5秒从视频中捕获一帧 ) This is my JavaScript code: (这是我的JavaScript代码 ... .currentTime = 10 ，将生成帧5s的图像 ) ask by Lin translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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278 views

1 answer

javascript - 什么时候应该使用转义而不是encodeURI / encodeURIComponent？(When are you supposed to use escape instead of encodeURI / encodeURIComponent?)

When encoding a query string to be sent to a web server - when do you use escape() and when do you ... encodeURIComponent("var1=value1&var2=value2"); ask by Adam translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

1 answer

javascript - JavaScript属性访问：点符号与方括号？(JavaScript property access: dot notation vs. brackets?)

Other than the obvious fact that the first form could use a variable and not just a string literal, is there any reason to use ... ，我想知道哪种更好 ) ask by Mark Renouf translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

262 views

1 answer

javascript - Chrome调试器的分析器中的“（程序）”是什么？(What is “(program)” in Chrome debugger’s profiler?)

什么是Chrome调试器的功能栏中的“（程序）”？ ask by hvgotcodes translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

215 views

1 answer

javascript - 在.map（）函数中反应增量变量(React incrementing variable within .map() function)

I am mapping through an array, and I want my variable i to be used as a unique key for my Components, however I do not ... > ))} </div> ); } ask by random1234 translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

101 views

1 answer

javascript - val（）和text（）之间的区别(Difference between val() and text())

What the difference between jQuery's functions val() and text() ? (jQuery的函数val()和text()之间有什么区别？) Where would you use one ... ? (你会在哪里使用一个？) ask by Dan Appleyard translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

233 views

1 answer

javascript - window.onload vs <body onload =“”/>(window.onload vs <body onload=“”/>)

What exactly is the difference between the window.onload event and the onload event of the body tag? (window.onload事件和body标签的onload事 ... 用哪个以及如何正确使用？) ask by Manu translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

112 views

1 answer

javascript - JavaScript闭包如何工作？(How do JavaScript closures work?)

How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, ... 它没有帮助 ) ask by community wiki translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

162 views

1 answer

javascript - 如何在js，jquery，html中创建适当的click事件(How to create a proper click event in js, jquery, html)

So as an assignment I need to create a barebones twitter clone. (因此，作为一项任务，我需要创建一个准系统的Twitter克隆 ) I was ... /section> --> </body> </html> ask by Imsuchacoder translate from so...

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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