Recent questions tagged Javascript

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javascript - Counting the number of option tags in a select tag in jQuery

How do I count the number of <option>s in a <select> DOM element using jQuery? <select data-attr=" ... panel which is generated by jQuery. 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, multi-threading and Socket.io

I'm looking to get Socket.io to work multi-threaded with native load balancing ("cluster") in Node.js v.0. ... anybody can point to some 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 - iOS 6 js events function not called if has setTimeout in it

I noticed this strange behaviour with the latest iOS (iOS 6). If calling a function for any touch event which ... behaviour or a bug? 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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javascript - How to replace the currently selected text inside an html textarea?

How do I edit the selected text of a textarea form element? EDIT: as in edit it in-place, replacing the orignal 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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javascript - iOS automatic hover fix?

Is there a jQuery plugin or JavaScript script that automagically loops through each CSS hover (found in an ... following link or other action 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 - Convert Google Analytics cookies to Local/Session Storage

UPDATE http://jsfiddle.net/musicisair/rsKtp/embedded/result/ Google Analytics sets 4 cookies that will be sent ... that support local storage. 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 - jquery: fastest DOM insertion?

I got this bad feeling about how I insert larger amounts of HTML. Lets assume we got: var html="<table>. ... love to learn alternatives as well. 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 prevent the browser from caching a json file

So I'm making this little project and I'm having some troubles with catching. One thing that's not working is the ... I'm talking about... help? 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 - Drag the Range of a UI Input Range Slider

<---------[]=====================================[]--------> 0 10 ... dragging the handles. What library offers this functionality? 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 - Fix object to top of browser window when scrolling

I saw recently a new interesting feature in the new gmail and also in the HTML5 bing preview that fixes a ... I'm trying to describe. 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 - JSONP and Backbone.js

I would like to use Backbone.js with a REST api I control. I was hoping to have the REST api and the ... support to Backbone.js sync system? See Question&Answers more detail:os...

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

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269 views

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javascript - How to get microphone input volume value with web audio api?

I am using the microphone input with web audio api and need to get the volume value. Right now I have ... manipulate it. Does anybody know? See Question&Answers more detail:os...

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

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235 views

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javascript - react routing and django url conflict

I am using reactjs as a frontend and django as backend. React router is used for routing. When i refresh the ... div> ); export default Banner; See Question&Answers more detail:os...

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

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244 views

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javascript - Alternate grunt.js tasks for dev/prod environments

I am trying to set up my grunt.js file so it only runs the min task when running on my ... differentiate between dev/prod environments? See Question&Answers more detail:os...

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

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610 views

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javascript - Injecting multiple scripts through executeScript in Google Chrome

I need to programmatically inject multiple script files (followed by a code snippet) into the current page from my ... way of abstracting 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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213 views

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javascript - Preventing bot form submission

I'm trying to figure out a good way to prevent bots from submitting my form, while keeping the process simple. ... : false; return _response; } See Question&Answers more detail:os...

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

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235 views

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javascript - React router global header

I just started learning React, I'm trying to make a SPA blog, which has a global positioned fixed header. ... Can someone explain me? 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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142 views

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javascript - React - Dynamically Import Components

I have a page which renders different components based on user input. At the moment, I have hard coded ... imported dynamically in another file? See Question&Answers more detail:os...

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

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452 views

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javascript - slideUp() and slideDown() animation using React.js

I have created a react component which consist of slideUp() and slideDown() animation. I have implemented ... getElementById('container') ); See Question&Answers more detail:os...

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

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146 views

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javascript - Backbone.js partial model update

Is it possible to send just the modified properties of a model when saving the changes? BTW, Are there any " ... to ask this kind of questions? See Question&Answers more detail:os...

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

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169 views

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javascript - What are advantages of using google.load('jQuery', ...) vs direct inclusion of hosted script URL?

Google hosts some popular JavaScript libraries at: http://code.google.com/apis/ajaxlibs/ According to google: The most ... min.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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258 views

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javascript - Filter array of objects whose any properties contains a value

I'm wondering what is the cleanest way, better way to filter an array of objects depending on a string keyword. ... 'John',country: 'Italy'}] 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 - Autocompletion in ACE editor

I've found simmilar question: Ace Editor autocomplete and multiple languages But the responses were that ... information about it. See Question&Answers more detail:os...

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

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146 views

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javascript - Can I put an HTML button inside the canvas?

I want to make the buttons for the game I'm making as real HTML buttons, but they need to be inside the canvas. How would I go about doing 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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202 views

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javascript - How do I define methods in a Mongoose model?

My locationsModel file: mongoose = require 'mongoose' threeTaps = require '../modules/threeTaps' Schema = mongoose. ... has no method 'testFunc' See Question&Answers more detail:os...

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

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150 views

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javascript - Proper way of using React hooks + WebSockets

I need to connect to WebSockets server and log it's messages. With React class component I'd put this logic in ... in a proper way. 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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491 views

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javascript - How can you get the CSS pixel / device pixel ratio?

I want to find the ratio between CSS pixels and device pixels. Edit: I should have realized that this is just ... search, but not with Webkit. See Question&Answers more detail:os...

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

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139 views

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javascript - When to use "window.onload"?

In JavaScript, when I want to run a script once when the page has loaded, should I use window.onload or just ... . What is the the difference? See Question&Answers more detail:os...

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

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