Recent questions tagged javascript

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javascript - Disable/Enable Submit Button until all forms have been filled

I want my form submit button to be disabled/enabled depending on if the form is completely filled. When the inputs are ... ="Submit" /> </form> 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 - Add / Change parameter of URL and redirect to the new URL

If the &view-all parameter does NOT exist in the URL I need to add it to the end of the URL along with a value. ... of a way to do it in PHP. 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 use "setTimeout" to invoke object itself

Why can't I use setTimeout in a javascript object? Message = function () { ... ... this.messageFactory = ... this ... (info); }, 5000); } } 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 check if HTML5 audio has reached different errors

Specifically, if one of the 206 requests for audio fails and buffering stops, is there a way to detect that ... point it to another source? 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 - lifecycle event state and prevState in react.js

Below is a simple counter in react. But I have 3 questions. What is state in line 3? It looks like a global variable, ... </button> </div> ) } } See Question&Answers more detail:os...

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

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263 views

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javascript - Play HTML5 Video when scrolled to

Is there anyway to autoplay a HTML5 video only when the user has the video (or a certain percentage of the video) in the browser viewport? 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 - Node JS and Webpack Unexpected token <

I've started studing Node JS. So here is my files. index.html <!DOCTYPE html> <html> <head> </head> < ... something to fix it? Thanks in advance 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 print React component on click of a button?

How can I print only one component on click of a button. I know this solution: window.frames["print_frame"]. ... . Any solutions? Thank you. 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 - Facebook OAuth "Unsupported" in Chrome on iOS

The Facebook OAuth popup is throwing an error in Chrome on iOS only. Both developers.facebook.com and google ... nothing about this. Ideas? 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 remove jQuery Mobile styling?

I chose jQuery Mobile over other frameworks for its animation capabilities and dynamic pages support. However, I'm ... customizable html/css... See Question&Answers more detail:os...

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

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490 views

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javascript - Browser waits for ajax call to complete even after abort has been called (jQuery)

I have some (potentially) long-running ajax calls that I would like to abort if the user navigates to another ... situation? Thanks in advance. See Question&Answers more detail:os...

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

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343 views

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javascript - Add ng-click dynamically in directive link function

I'm trying to create a directive that would allow an element to be defined as clickable or not, and ... add unnecessary overhead. Any ideas? See Question&Answers more detail:os...

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

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297 views

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javascript - apply formatting filter dynamically in a ng-repeat

My goal is to apply a formatting filter that is set as a property of the looped object. Taking this ... .co/edit/YnCR123dRQRqm3owQLcs?p=preview See Question&Answers more detail:os...

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

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512 views

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javascript - How to pass a function in Puppeteers .evaluate() method?

Whenever I try to pass a function, like this: var myFunc = function() { console.log("lol"); }; await page. ... foo); return true; }, myFunc); See Question&Answers more detail:os...

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

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791 views

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javascript - Using mongoose promises with async/await

I'm trying to get the hang of using Mongoose promises with the async/await functionality of Node.js. When my function ... error occured'; }); }, See Question&Answers more detail:os...

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

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638 views

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javascript - How to draw a blurry circle on HTML5 canvas?

I'm able to draw a simple circle on HTML5 canvas, but I'd like to add some blur around it. What I ... circle itself also has a blur effect? See Question&Answers more detail:os...

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

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479 views

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javascript - Promise.resolve().then vs setImmediate vs nextTick

NodeJS 0.11 as well as io.js and the Node 0.12 branch all ship with native promises. Native promises have a ... before or after the event loop? See Question&Answers more detail:os...

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

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573 views

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javascript - Select a row from html table and send values onclick of a button

I have HTML table where I need to select a row and send its first cell ID to a button and onclick of the ... the function. How to do this? See Question&Answers more detail:os...

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

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366 views

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javascript - Whats the smartest / cleanest way to iterate async over arrays (or objs)?

Thats how I do it: function processArray(array, index, callback) { processItem(array[index], function(){ if( ... avoid those spaghetti'ish 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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289 views

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javascript - css transitions on new elements

I cannot find a way to use css transitions on newly created dom elements. let's say I have an empty ... transitions on newly created elements? See Question&Answers more detail:os...

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

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324 views

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javascript - Get All Elements in an HTML document with a specific CSS Class

What's the best way to get an array of all elements in an html document with a specific CSS class using ... for something a little more elegant. 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 - How to use FormData in react-native?

Hi just learn to use js and react-native. I cant use FormData it always shows unsupported bodyinit type. I want to send ... (error); }) .done(); See Question&Answers more detail:os...

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

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295 views

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javascript - What event does JQuery $function() fire on?

We have a JQuery $(function() statement as: <script type="text/javascript"> $(function(){ //Code.. }) </ ... /javascript"> //Code.. </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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414 views

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javascript - Are data attribute css selectors faster than class selectors?

A few months ago this article pointed out that classes could actually be avoided all together from website development ... jQuery(".something")? See Question&Answers more detail:os...

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

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529 views

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javascript - Difference between focusin/focusout and focus/blur, with example

Can anyone tell me the difference between blur and focusout, focus and focusin with a simple example? See Question&Answers more detail:os...

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

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386 views

1 answer

javascript - IBAN Validation check

I need to do an IBAN validation check using JavaScript. The rules I need to follow are: ... validateIBAN("RU1230000000000000000000000000000")); See Question&Answers more detail:os...

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

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354 views

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javascript - how to set up an inline svg with webpack

I am wondering how to set up an inline svg with webpack? I am following the react-webpack-cookbook. I have my ... ); } }; export default Header 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 - ArrayBuffer to blob conversion

I have a project where I need to display djvu schemas in browser. I found this old library on Github which, as ... is: what I am doing wrong? See Question&Answers more detail:os...

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

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