Recent questions tagged Javascript

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javascript - How to increase width of morris.js bar or add space between bars?

I have this morris.js bar with multiple bars, i want to change width of the bars or make space between durations. ... }); you can test it here 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 - How to handle a get request with node.js (express)

I'm a node.js newbie and I'm creating my first big app with it (I'm using express). I need to have my ... then send that page back to the user. 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 - How to get RxJS Observable events in zero time?

I'm collecting all the events of an Observable to a data array: const obs$ = Rx.Observable .interval(500) .take(4 ... 0/bundles/Rx.js"></script> 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 - Why is my Angular controller undefined?

I've been following a tutorial, the textbook assures me that this works, but it's bombing with Error: [ng:areq] ... </script> </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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698 views

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javascript - how to identify onbeforeunload was caused by clicking close button

How do I determine if onbeforeunload was caused by clicking the close button or a page refresh or generally what ... event } Please help me. See Question&Answers more detail:os...

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

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567 views

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javascript - How to render icon fonts on HTML canvas and Material Design icon fonts in particular?

This wonderful answer details how to include icons from FontAwesome in a HTML canvas. Adapting the code for icon font from ... , x, y); }); 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 - Only works on one-to-one of which was to be many-to-many, webrtc

I am developing a conference style application (many-to-many) for video calls this style. The code is available on ... candidate); } }, 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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javascript - Angularjs: how to revert back to the runtime loaded DOM elements in the previous view on going back (preserve state)

I have an angular application which has two views: 1) List view 2) Detail View when you click on the thumbnail ... how do i preserve them?? See Question&Answers more detail:os...

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

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391 views

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javascript - Canvas - floodfill leaves white pixels at edges

I am creating a drawing app. I have succeeded to do everything. When I paint the image with a dark color, some ... if (currentState !== undefined) { rBuffer.push(currentState); }...

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

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javascript - how to add Button to a select2 dropdown on a dynamic table

Good day! I'm doing a Dynamic table which you can add/remove row, and I'm using select2 to search Items on ... very much and have a good day! See Question&Answers more detail:os...

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

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398 views

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javascript - Changing the CSS for a React component has effect on all other pages

I have a React component with the following files: src/components/HomePage/index.js src/components/HomePage/style.scss ... an object like that? See Question&Answers more detail:os...

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

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433 views

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javascript - What is the time complexity of this in-place array reversal?

Is this function O(n) or O(log(n)) time complexity. function reverse(array) { for (var i = 0, j = ... lower level operations is closer to 2n. See Question&Answers more detail:os...

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

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521 views

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javascript - Web Audio Offline Context and Analyser Node

Is it possible to use the Analyser node in the offlineAudioContext to do frequency analysis? I found out that ... fiddle with the same 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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382 views

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javascript - Calling a function defined inside jQuery ready from outside of it

My aspx page:- <script src="js/jquery-1.4.2.js" type="text/javascript"></script> <script src="js/ ... other logics to perform in both pages. See Question&Answers more detail:os...

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

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532 views

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javascript - Wrap HTML with DIV until next H3

I have the following HTML structure: $('#subgroup a').nextUntil('h3').wrapAll('<div></div>'); <script src="https:// ... ="#">Link #4</a> </div> See Question&Answers more detail:os...

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

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969 views

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javascript - Material ui Autocomplete: can tags be created on events aside from 'Enter' events?

I am currently working with the freesolo Autocomplete and my particular use case requires tags to be created when commas ... (ke); } }; 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 - Shake a login form on error

I have successfully built a login form using ajax and want to add a shake effect to the form when the user ... in a random sequence? 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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622 views

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javascript - html2canvas code not working IE 11

I am hoping to use the html2canvas library to make a image of one div and put it in another. So far I ... not sure how to proceed from 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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392 views

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javascript - What is the HTML5 canvas?

I'm a little confused to what HTML5 canvas is. I've been told it is JavaScript, but it seems to be a ... it do other things than JavaScript? See Question&Answers more detail:os...

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

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466 views

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javascript - How to check if a value/property exist in JSON data

I am using Google Books API to receive a list of books, but sometimes some book entry does not have some keys/ ... are added to the DOM }; See Question&Answers more detail:os...

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

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579 views

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javascript - Access pre-populate SQL Lite DB in Phonegap

I created a pre-populate SQL Lite DB an added it to my app as described in my other question. Now, how ... 't have a 0000000000000001.db file. See Question&Answers more detail:os...

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

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613 views

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javascript - SCRIPT5009: 'fetch' is undefined

have some troubles! For my requests i'm using Fetch API! Submit form don't work in IE, because of "SCRIPT5009: ... idea, thanks in advance! 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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709 views

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javascript - For some reason, my D3 Map is displaying upside down - how can I flip it?

Have a topoJSON file that I am importing - seems like this should be easy to flip, but I have no idea. Should I be ... 0 0)'); }); </script> See Question&Answers more detail:os...

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

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372 views

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javascript - Object.create Prototype Chains

Initial Question Yesterday i read about ECMAScript 5 Object.create() And I wanted to start building prototype Chains in ... strict mode (??) See Question&Answers more detail:os...

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

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491 views

1 answer

javascript - get a smooth animation for a canvas game

How to get a better animation, dinamically, even when browser is busy or idle, for different devices which ... how to change it dinamically. See Question&Answers more detail:os...

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

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614 views

1 answer

javascript - Chrome Extension auth/network-request-failed when communicating with Firebase

I'm trying to implement the Firebase E-Mail login into my Extension. From the extensions popup.html, I'm calling ... : "auth/too-many-requests" See Question&Answers more detail:os...

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

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1.1k views

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javascript - Browsers back button click with confirm box

Need to create the javascript confirm pop up on click of browsers back button. If I click on back button ... this would be really appreciable. See Question&Answers more detail:os...

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

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449 views

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javascript - Does this Safari behavior break the ECMAScript specification?

The following code prints 1 in Safari 13.0.4 on OSX. let set = new Set for(let x = 0; x < 2; x++) { ... set.size) // 1 in Safari non-strict mode See Question&Answers more detail:os...

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

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