Recent questions tagged JavaScript

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javascript - Bootstrap Datepicker on change firing 3 times

Hi I have been trying to just get the date of a bootstrap date picker and have been able to but it seems to ... is an easy solution to this. thx See Question&Answers more detail:os...

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

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317 views

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javascript - Submitting a file with jQuery.ajax gives TypeError

I am trying to submit a file from a form using jQuery's ajax method: var ofile=document.getElementById('image ... .append, but inside jQuery. See Question&Answers more detail:os...

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

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265 views

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javascript - React hooks: What/Why `useEffect`?

Concerning the newly proposed React Effect Hook; What are the advantages and use cases of the Effect hook ... & componentDidUpdate do anyways? See Question&Answers more detail:os...

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

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javascript - IFrame height issues on iOS (mobile safari)

Example page source: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" ... t have no actual iDevice at hand. See Question&Answers more detail:os...

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

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javascript - Giving initial value to observable from the HTML markup

I'm trying to create an HtmlHelper extension that outputs some HTML to the view. In this HTML I'm ... override this behavior or something? See Question&Answers more detail:os...

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

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271 views

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javascript - Can I use CKEditor without a toolbar?

(Possible duplicate: CKEditor - No toolbars) I'd like to create a CKEditor instance without a toolbar. I ... inline editing with CKEditor4. See Question&Answers more detail:os...

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

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512 views

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javascript - Array Out of Bounds: Comparison with undefined, or length check?

this seems to be a common javascript idiom: function foo (array, index) { if (typeof array[index] == ' ... it will be a contiguous array? See Question&Answers more detail:os...

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

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javascript - TinyMCE width and height disobedient!

According to the (conflicting) documentation of TinyMCE, the editor takes on the size of the textarea (or other) ... time a user resized it. See Question&Answers more detail:os...

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

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302 views

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javascript - Easiest way to mask characters in HTML(5) text input

Does HTML5 have any kind of text field masking or do I still have to trap onkeydown etc.? jbabey is ... look very hackish and unprofessional. See Question&Answers more detail:os...

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

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520 views

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javascript - jQuery.ajax success callback function not executed

I have a JavaScript Ajax call (jQuery.ajax), that does not execute the success callback function. $.ajax({ url: ... as expected. What is wrong? See Question&Answers more detail:os...

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

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320 views

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javascript - Why componentWillMount should not be used?

Firing server call to fetch data in componentWillMount life cycle method a bad practice? And why it is better to use componentDidMount. See Question&Answers more detail:os...

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

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254 views

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javascript - Update in forEach on mongodb shell

I have got a collection aTable with 2 records: { "title" : "record 1", "fields" : [ { "_id" : 1, "items" : [ ... , {$set:aNewItem}) } ) } ) }); See Question&Answers more detail:os...

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

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510 views

1 answer

javascript - HTML5 Canvas get transform matrix?

Is there a way to get the current transformation matrix for a canvas? There is a context.setTransform() ... been very unhelpful with this. See Question&Answers more detail:os...

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

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191 views

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javascript - Functions inside objects

I know the title is vague but I didn't know what to write. In javascript, I know how to write functions ... function(argument3);//And even more! See Question&Answers more detail:os...

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

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642 views

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javascript - Remove all ANSI colors/styles from strings

I use a library that adds ANSI colors / styles to strings. For example: > "Hello World".rgb(255, 255, 255) ' ... But the output is the same... See Question&Answers more detail:os...

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

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419 views

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javascript - lodash: check object is empty

I have this object: {"": undefined} and when I check this object for empty in this way: _.isEmpty({"" ... in lodash we have another method? See Question&Answers more detail:os...

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

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263 views

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javascript - 'jquery is not defined' when using webpack to load bootstrap

I am just starting to learn to use Webpack (previously I just use the manual way to include individual ... my basic understanding of these. See Question&Answers more detail:os...

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

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275 views

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javascript - jshint expects the new 'prefix' for functions

CSiginIn, CSignUp, CTryIt, CBlocks are all functions declared as such function CSignIn(){//stuff here} yet JSHint says that ... ); }, false ); } See Question&Answers more detail:os...

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

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559 views

1 answer

javascript - Creating stripe token using separate elements

Instead of using the element type 'card' I needed to separate the elements, In the documentation example they only ... ('#card-postal-code'); See Question&Answers more detail:os...

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

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365 views

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javascript - Google Maps API 3 - limit pan/map bounds

I am completely new to Google Maps and am just creating my first map so that I can incorporate it into my website. I ... </div> </body> </html> See Question&Answers more detail:os...

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

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321 views

1 answer

javascript - Reading metadata from the <track> of an HTML5 <video> using Captionator

I am having trouble getting a working example that reads metadata from a WebVTT file, which was specified by the <track> ... 1 2 3 . . . See Question&Answers more detail:os...

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

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325 views

1 answer

javascript - keydown + keyup events for specific keys

I'm trying to make the background color change when certain keys are held down. For example, when the 'r' key ... better way of doing this... See Question&Answers more detail:os...

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

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256 views

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javascript - Node.js - Auto Refresh In Dev

I am trying to improve the DEV experience in my Node. To do that, I want to: a) restart my server when server ... above. What am I doing wrong? See Question&Answers more detail:os...

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

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509 views

1 answer

javascript - Adding click event via addEventListener to confirm navigation from a hyperlink

I am writing some JavaScript that what I essentially want to do is confirm when a user clicks a link that they do ... )">Google</a><br /> See Question&Answers more detail:os...

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

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819 views

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javascript - In the FullCalendar dayClick event, can I get the events that already exist in clicked date?

In the FullCalendar dayClick event, can I get the events that already exist in clicked date? http://arshaw.com/ ... existing event in the date? See Question&Answers more detail:os...

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

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261 views

1 answer

javascript - Bootstrap 3 square tile display

Using Bootstrap 3, I want to have square tiled menu that looks like Bootstrap's thumbnail (http://getbootstrap.com/ ... to use an img there? See Question&Answers more detail:os...

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

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259 views

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javascript - Can I have multiple gruntjs files in my project for code organization?

I'm using gruntjs for my project and was wondering if it's possible to have multiple grunt.js files in my ... huge grunt.js file? Thanks. See Question&Answers more detail:os...

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

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362 views

1 answer

javascript - How to correctly extract text from a pdf using pdf.js

I'm new to ES6 and Promise. I'm trying pdf.js to extract texts from all pages of a pdf file into a ... after all 4-pages-extraction is done. See Question&Answers more detail:os...

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

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