Recent questions tagged JavaScript

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Pretty simple: I have code using Object.getPrototypeOf(...) to get the inherited classes of a Dojo Widget ( ... Any ideas? Thanks in advance. See Question&Answers more detail:os...

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

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264 views

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javascript - Why binding is needed in ES6 react classes

In new React ES6 classes this needs to be binded as stated here: http://facebook.github.io/react/blog/2015/ ... binding is needed in React then? See Question&Answers more detail:os...

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

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542 views

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javascript - Chrome Extension: fire an event when element created?

I'd like to fire an event when an element is added to the document. I've read the JQuery documentation ... a Chrome Extension content 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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376 views

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javascript - How to validate html textbox not to allow special characters and space?

This is my html: <input type="text" name="folderName"> Here, I want to validate the textbox value by not ... . How to validate this textbox? See Question&Answers more detail:os...

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

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659 views

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javascript - Display alert only once

I have this code that shows alert when it's 30 minutes before event in calendar but I want to show it only once when 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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198 views

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javascript - Dynamic script addition should be ordered?

I'm adding some <script> tags dynamically to the head element after page load. I understand the scripts are loaded ... 't (as firefox shows). 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

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javascript - js open popup window and acces its element in another page

I have a problem with js popup window. I open a popup and try to access its elements in another page page, ... its sources using JS or 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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790 views

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javascript - How to Draw an image on canvas from a byte array in jpeg or png format

Like the title says, I have a byte array representing the contents of an image (can be jpeg or png). I ... is identical to the original 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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364 views

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javascript - .call() / .apply() with NO parameters VS simply calling a function with () parenthesis

I've seen it done differently in code out there, but is there any benefit or reason to doing a (blank ... are used when params are passed. 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 - Monkey patch XMLHTTPRequest.onreadystatechange

How would go about monkey patching the XMLHTTPRequest's onreadystatechange function. I'm trying to add a function that ... is the case 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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458 views

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javascript - HTML5 Canvas with rounded corner

I'd like to have an HTML5 canvas with rounded corner. I'm using the CSS property border-radius: 15px to round ... ://jsfiddle.net/XYHpJ/ 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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403 views

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javascript - How to avoid re-rendering the whole List instead of adding the new item to the DOM list in react JS?

As in the React demo, and other examples, I see people resetting the State data if one record is added or ... of "repainting", rendering loops. See Question&Answers more detail:os...

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

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375 views

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javascript - Can I force jQuery Deferred/Ajax to execute fail handler after it has been resolved?

An example to make clear what i want to do. This is what I would usually do: function success(data, status, jqxhr){ ... , status, err){ ... }) See Question&Answers more detail:os...

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

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258 views

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javascript - How to integrate mixpanel with angular2

In index.html I have added mixpanel code from https://mixpanel.com/help/reference/javascript. In my export class ... somebody help me on 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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199 views

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javascript - Getting the table row values with jQuery

I am trying to get the values from an HTML table row. When I click on the table row delete button, I want to ... I cant seem to make this work. See Question&Answers more detail:os...

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

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383 views

1 answer

javascript - enquire.js legacy support

I'm trying to figure out what the best way to get enquire.js to work on legacy browsers (ie 6-9). On enquire' ... find a way to make this work. See Question&Answers more detail:os...

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

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308 views

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javascript - Save flot graph as image

Hi I am trying to save flot graph as image (png/jpeg..). I look into other questions they advice to use ... this graph? Thanks for your help. 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 - How to make modal dialog open at page load in bootstrap

It's easy to show a modal dialog with javascript in Bootstrap. But how to make the modal open at page load without ... possible? How to do 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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699 views

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javascript - ESLint error trying to deploy functions Firebase

I'm try to deploy fireabase example , but when I try to deploy it , CLI launches an error: [CODE] const ... messages. How can I solve 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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853 views

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javascript - WebRTC: Is it possible to control the microphone and volume levels

I am working on a demo site which includes a slide-out widget that allows a user to place a call. I ... volume controls? Thanks for your help. See Question&Answers more detail:os...

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

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494 views

1 answer

javascript - Toggle Bootstrap modal with URL and hash

I'd like to use URLs with hashes to call specific Bootstrap modals. In other words, a user is on page1 and ... the user is actually on page2. See Question&Answers more detail:os...

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

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390 views

1 answer

javascript - bxSlider within show/hide divs

My page's content is toggled using different links, showing one div at a time using a jQuery 'showonlyone' function. ... to fix this? Thank you. See Question&Answers more detail:os...

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

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201 views

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javascript - how to catch angular ng-include error

When I use ng-include as a title, how do I catch the error when the address (file path) does not exist? I ... hash. Can anybody Help me ? 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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766 views

1 answer

javascript - $(window).blur event affecting Iframe

I want to detect when the user leaves my page( e.g open a new tab) so I can stop a countdown. I did it ... } But it did not work. Any idea? 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 - Hide Button After Click (With Existing Form on Page)

I am trying to hide a button (not inside form tags) after it has been clicked. Below is the existing code. All ... </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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281 views

1 answer

javascript - jquery json parsing

How do I parse this json with jQuery? DayEvents: [{ "0": "886", "event_id": "886", "1": "5029", ... ", "user_type": "Professional", ... 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

1 answer

javascript - Why doesn't the document.execCommand work when I click on a div?

Both the button and the div have the same 'onclick' code, yet the execCommand only seems to work on the button. ... the buttons above </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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1.1k views

1 answer

javascript - Animated GIF on Fabric.js Canvas

I'm working on a project where I've been asked to support animated GIF on a fabric.js canvas. As per ... haven't found a working solution. See Question&Answers more detail:os...

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

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