Recent questions tagged Javascript

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javascript - How do I put codes from jsfiddle.net into my website?

I've been trying to create a little box at the bottom of my webpage which will expand / pop-up when scrolled ... exactly like it is on JSFiddle? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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330 views

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javascript - Does chrome supports document.selection?

I am new to javascript, trying to perform: document.selection.createRange(); but document.selection always returns ... I doing wrong? thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

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javascript - Firefox extension custom fonts

I am using the Firefox Add-on SDK to create an extension and am performing a PageMod. This code is in ... fonts into a webpage using PageMod! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Object.defineProperty in ES5?

I'm seeing posts about a 'new' Object.create that makes enumeration configurable. However, it relies on a Object. ... 't work in IE6/7. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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460 views

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javascript - res.download() not working in my case

I am using nodejs and expressjs framework to download a file 'jsonFile.json' from server. i am using the following ... file in local disk.??? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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552 views

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javascript - forEach method of Node.childNodes?

After providing an incorrect answer concerning the .item() property of Node.childNodes for a question, I inspected ... snippet.js"></script> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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940 views

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javascript - jquery ajax readystate 0 responsetext status 0 statustext error

I am getting the following error: jquery ajax readystate 0 responsetext status 0 statustext error when giving it: url(http ... > </body> </html> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

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javascript - Multiple Windows using window.open()

So as we all know if you click on a submit button that has embedded in it a onClick(windown.open(...)) this ... I can't seem to find anything. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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308 views

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javascript - Midpoint of route in google maps

I was wondering if anyone knew how to use the google maps api to find the midpoint of a route between ... and route midpoint for some research See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to adapt trampolines to Continuation Passing Style?

Here is a naive implementation of a right fold: const foldr = f => acc => ([x, ...xs]) => x === ... be adapted so that it works with CPS? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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264 views

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javascript - regex to find url in a text

I have to find the first url in the text with a regular expression: for example: I love this website:http:// ... ://www.youtube.com/music] text See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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javascript - Accessing event.target inside callback in react

I have the following class snippet: constructor(props) { super(props); this.timeout = null; } search = (e) => { ... should be doing but i'm not? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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414 views

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javascript - Conditional where clause in firestore queries

I have fetch some data from firestore but in my query I want to add a conditional where clause. I am using async- ... ">", 1000000) and so on. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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253 views

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javascript - Understanding Crockford's Object.create shim

I've been reading up on the Crockford shim for preventing the overwriting of prototypes, and understand that it's ... . Thanks in advance, -k See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

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javascript - contentDocument for an iframe

What exactly does "contentDocument" represent for an iframe (or even the old "frame" element)? Is it ... supported across all the browsers? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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277 views

1 answer

javascript - Creating Drop Down Menu on click CSS

I'm required to build a menu with 5 options, upon clicking a certain one a new sub menu is to appear. I have absolutely ... > </li> </ul> </nav> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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202 views

1 answer

javascript - Why will jQuery not load in Facebook?

Situation : I am writing a chrome extension that works on any page. Problem Question : I can not load ... "storage", "unlimitedStorage" ], See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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253 views

1 answer

javascript - How do I monitor the DOM for changes?

Is there a way - using jQuery or otherwise - to monitor the DOM for insertions, deletions, updates to styles, etc? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

1 answer

javascript - Writing file to desktop using HTML5 FileSystem API

I'm playing around a bit with the FileSystem API. I've found a lot of examples where you generate a download link and ... = 'blob'; xhr.send(); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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408 views

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javascript - Counting and limiting words in a textarea

I managed to make this little jquery function to count the number of words entered in textarea field. here is ... interfere with the main code. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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536 views

1 answer

javascript - How to prevent invalid characters from being typed into input fields

Onkeydown, I run the following JavaScript: function ThisOnKeyDown(el) { if (el.title == 'textonly') { !(/^[ ... ="30" title="textonly"/> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

1 answer

javascript - Use jQuery to detect whether a device can make telephone calls (supports "tel://" protocol)

In my website, I have several links like so: <a href="tel://+12181112222" class="call">218.111.2222</a> I want to ... ").attr("href", "#"); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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443 views

1 answer

javascript - JS setInterval executes only once

I have the following JS functions: function checkIfGameAlreadyStarted(){ $.get("IsGameAlreadyStarted",null,function( ... not every second? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

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javascript - Alter and Assign Object Without Side Effects

I currently have the following code: var myArray = []; var myElement = { id: 0, value: 0 } ... previously inserted values in the array? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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582 views

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javascript - Is it possible to play HTML5 video in reverse?

Is HTML5 <video> tag be play video in reverse, or I have to download 2 videos (forward and backword play ... user from downloading 2 videos? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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363 views

1 answer

javascript - Clicking a disabled input or button

Is it possible to click on a disabled button and provide some feedback to the user? HTML: <input type="button" value ... { alert('CLICKED'); }); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

1 answer

javascript - Why does $('#id') return true if id doesn't exist?

I always wondered why jQuery returns true if I'm trying to find elements by id selector that doesnt exist in the ... null if not found? anyone? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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273 views

1 answer

javascript - Calculating the difference between two dates

I have tried like this <script type="text/javascript"> var date2=02/09/2009; var date1=03/12/2009; var diff = ... (); alert (diff2); </script> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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