Recent questions tagged Javascript

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javascript - How to pass an object as props with vue router?

I have the following fiddle https://jsfiddle.net/91vLms06/1/ const CreateComponent = Vue.component('create', { ... that comes from the listing. 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 - Maximum number of entries in Node.js Map?

I was making a large Map in Node.js v11.9.0 and it kept failing with "FATAL ERROR: invalid table size ... this is likely a V8 limitation.) 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 - Better to export an object containing function, or just export multiple functions in ES6 (Is there a convention?)

This is a question of convention. I'm new to ES6 but I'm trying to make use of the module system. Is preferred/ ... me, and I don't know why. 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 - Models of concurrency in nodejs

Does anyone know what the memory and threading models are in nodejs? In particular, is ii++ atomic? Does it behave as ... in C, or not at all? 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 - Detecting data changes in forms using jQuery

I'm using ASP.NET 2.0 with a Master Page, and I was wondering if anyone knew of a way to detect when the ... changed (e.g., marked 'IsDirty')? 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 - What are best practices for detecting pixel ratio/density?

I am currently using JavaScript for mobile device detection on my website, this then allows me to serve ... which works for everything. 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 run multiple asynchronous functions then execute callbacks?

In my Node.js code I need to make 2 or 3 API calls, and each will return some data. After all ... complete and supply data before executing? See Question&Answers more detail:os...

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

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166 views

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javascript - Unable to add properties to js object

I am returning a Mongoose document and wish to add some meta data to it before I send it off. I am however ... however }) What could be issue? 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 - Babelify throws ParseError on import a module from node_modules

I'm working with Babelify and Browserify. Also, I'm using ES6 style module features by node module system ... with babelify in node_modules? 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 render a HTML comment in React?

Currently the render method can only return a single element/component. See: here In the discussion under that ... above could look like? See Question&Answers more detail:os...

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

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155 views

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javascript - CodeIgniter - How to return Json response from controller

How do I return response from the controller back to the Jquery Javascript? Javascript $('.signinform').submit( ... json_encode( $arr ); } 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 - Get element height with Vuejs

I want to get the height of a div in order to make the height of another div matching it. I used the method ... </ul> </div> </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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185 views

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javascript - React: this is null in event handler

I have a LoginForm component. I want to check before submit, that both loginName and password is set. I tried with ... . What should I be doing? See Question&Answers more detail:os...

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

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380 views

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javascript - typescript declare third party modules

How could I declare a third party module which looks like this: in third party module: module.exports = function foo() ... module for ... foo(); See Question&Answers more detail:os...

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

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178 views

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javascript - How do I stream response in express?

I've been trying to get a express app to send the response as stream. var Readable = require('stream').Readable; ... at line "rs.pipe(res);" See Question&Answers more detail:os...

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

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223 views

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javascript - In ECMAScript5, what's the scope of "use strict"?

What scope does the strict mode pragma have in ECMAScript5? "use strict"; I'd like to do this (mainly ... , thus blocking the eval execution? See Question&Answers more detail:os...

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

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248 views

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javascript - Capturing the "scroll down" event?

I'm designing a very simple web page (HTML only), the only "feature" I want to implement is to do ... to capture that "event" somehow? See Question&Answers more detail:os...

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

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130 views

1 answer

javascript - What is the height of a "line" in a wheel event? (deltaMode = DOM_DELTA_LINE)

The wheel event in Firefox >= 17 has a deltaMode property. With the OS/mouse I'm using, it's set to 1 ... -height) isn't yet described anywhere. See Question&Answers more detail:os...

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

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266 views

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javascript - Remove first character from a string if it is a comma

I need to setup a function in javascript to remove the first character of a string but only if it is a comma ... .value = newvalue.substr(1); See Question&Answers more detail:os...

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

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291 views

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javascript - Disable button after submit with jQuery

I know there are a lot of questions about it, but I tried several solutions, and nothing works. In my django ... ? Thank you for your 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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696 views

1 answer

javascript - detect ctrl key pressed or up, keypress event doesn't trigger

I see some similar questions here (like JavaScript: Check if CTRL button was pressed) but my problem is actually the ... can I detect the ctrl? 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 - jQuery UI 1.10: dialog and zIndex option

I have to make an dialog to apear when an image onclick. The problem is that I have some realy big z-index there ... } ] }); reparaZindex(); } See Question&Answers more detail:os...

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

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459 views

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javascript - Using the ternary operator with string concatenation

alert("test: "+(1==2)?'hello':'world'); This should show me 'world' on the screen since 1 is not equal to 2. How come it alerts 'hello'? See Question&Answers more detail:os...

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

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212 views

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javascript - Entire form onChange

How can I use onChange or a similar event for all form elements? I don't want to use onChange for each field separately. See Question&Answers more detail:os...

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

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132 views

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javascript - ES6 import from root

I'm currently playing around with React Native. I'm trying to structure my app, however it's starting to get ... I implement this with import? See Question&Answers more detail:os...

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

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141 views

1 answer

javascript - Clear text field value in JQuery

I understand this is an easy question but for some reason this just isn't working for me. I have a ... I am missing something very simple. See Question&Answers more detail:os...

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

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175 views

1 answer

javascript - How to debug web workers

I have been working with web workers in HTML 5 and am looking for ways to debug them. Ideally something like the ... of hard to debug iffy 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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198 views

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javascript - Possible to reverse a css animation on class removal?

Essentially what I'm trying to do is give an element a CSS animation when it gains a class, then reverse that ... <div id='item'></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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