Recent questions tagged Javascript

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javascript - Is it possible to trigger events using Vue.js?

I have just started using Vue.js and find myself continuously turning to jQuery to help in certain situations. ... a method for achieving 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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192 views

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javascript - How do I overlay ActivityIndicator in react-native?

I have a View with few form elements and a button (TouchableHighlight). On clicking the button, an ... and center the ActivityIndicator. See Question&Answers more detail:os...

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

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189 views

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javascript - How to execute a method passed as parameter to function

I want to write my own function in JavaScript which takes a callback method as a parameter and executes it ... method implementation 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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368 views

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javascript - Jade conditional (if/else) to add class to div inline

Is there a way to do this inline in a jade template? if(typeof fromEdit != 'undefined') div#demo.collapse.in ... of the div if fromEdit exists. 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 - Pure Functions: Does "No Side Effects" Imply "Always Same Output, Given Same Input"?

The two conditions that define a function as pure are as follows: No side effects (i.e. only changes to ... necessary with the first condition? See Question&Answers more detail:os...

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

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442 views

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javascript - in querySelector: how to get the first and get the last elements? what traversal order is used in the dom?

in a div, have elements (not necessarily 2nd generation) with attribute move_id. First, would like most ... .wikipedia.org/wiki/Tree_traversal 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 - jQuery 'if .change() or .keyup()'

Using jQuery i would like to run a function when either .change() or .keyup() are raised. Something like this. ... the variables to be in-scope. See Question&Answers more detail:os...

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

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143 views

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javascript - How to check if two vars have the same reference?

How can you check if two or more objects/vars have the same reference? See Question&Answers more detail:os...

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

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485 views

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javascript - How do I get the width and height of a HTML5 canvas?

How can i get the width and height of the canvas element in JavaScript? Also, what is the "context" of the canvas I keep reading about? See Question&Answers more detail:os...

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

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674 views

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javascript - How to hide "Showing 1 of N Entries" with the dataTables.js library

How do you remove the "Showing 1 of N entries" line of text on a dataTable (that is when using the javascript ... seem to find it in the docs. See Question&Answers more detail:os...

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

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266 views

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javascript - How to set the DefaultRoute to another Route in React Router

I have the following: <Route name="app" path="/" handler={App}> <Route name="dashboards" path=" ... .com/#/dashboards/searchDashboard"); 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 - Mocha API Testing: getting 'TypeError: app.address is not a function'

My Issue I've coded a very simple CRUD API and I've started recently coding also some tests using chai and chai ... an empty object: server: {}. See Question&Answers more detail:os...

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

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576 views

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javascript - How to compare only date in moment.js

I am new to moment.js. I have a date object and it has some time associated with it. I just ... not suggest plain javascript date comparison. See Question&Answers more detail:os...

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

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219 views

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javascript - Check if date is a valid one

Following is the scenario: I have a String date and a date format which is different. Ex.: date: 2016- ... not allowed to change the dateFormat. See Question&Answers more detail:os...

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

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181 views

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javascript - jQuery framework internals

I am trying to understand the internals of how jquery framework is written and finding it hard to understand the ... on jquery. Thanks Susan See Question&Answers more detail:os...

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

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486 views

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javascript - jQuery UI Dialog instead of alert() for Rails 3 data-confirm attribute

In Rails 3, passing a :confirm parameter to link_to will populate the data-confirm attribute of the link. ... effective approach than 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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316 views

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javascript - How can I write and use custom declaration files that don't exist on @types or DefinitelyTyped?

I'm using an npm package called foo that doesn't exist on DefinitelyTyped. In other words, @types/foo doesn' ... .d.ts files to DefinitelyTyped? See Question&Answers more detail:os...

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

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139 views

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javascript - Adding new properties to constructor function without .prototype

when I have function I want to use as a constructor, say: function clog(x){ var text = x; return ... objects that clog is their prototype? See Question&Answers more detail:os...

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

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248 views

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javascript - using setElement with views in backbone

Following this tutorial went okay but I decided to give it another run with backbone 0.9 and the new setElement ... that should appear does not. See Question&Answers more detail:os...

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

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359 views

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javascript - Simple node.js server that sends html+css as response

I've created basic http server that sends html file as response. How can I send css file as well so client ... it is just for learning purpose) See Question&Answers more detail:os...

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

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160 views

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javascript - Swipe effect in react js

I'm trying to create a swipe event using React. I do not want to use any external component or jquery. The ... swipe effect? Here is jsfiddle. See Question&Answers more detail:os...

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

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224 views

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javascript - External API Calls With Express, Node.JS and Require Module

I have a route as followed: var express = require('express'); var router = express.Router(); var request = ... Any help would be great. 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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389 views

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javascript - Check if cookie exists else set cookie to Expire in 10 days

Here is what I'm looking to do (pseudo-code): Imagine the name of the cookie in the example is "visited" ... can I achieve this in 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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187 views

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javascript - Node.js read and write file lines

I tried to read a file line by line, and output it to another file, using Node.js. My problem is ... Any thoughts would be appreciated, 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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245 views

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javascript - How to register a url protocol handler in Node.js

I am developing a command line node module and would like to be able to launch it via links on a website. I ... on Windows, Linux, and MacOS. See Question&Answers more detail:os...

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

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250 views

1 answer

javascript - Socket.io - listen events in separate files in node.js

For example my idea is: File1.js io.sockets.on('connection', function (socket) { socket.on('file1Event', ... will have problems it this 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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250 views

1 answer

javascript - Why V8 in Node.JS is faster than in my native C++ addon?

Why Google's V8 JavaScript engine in my C++ addon works significantly slower than in Node.JS? I've ... } NODE_MODULE(native, registerModule); See Question&Answers more detail:os...

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

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436 views

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javascript - page.evaluate Vs. Puppeteer $ methods

I'm interested in the differences of these two blocks of code. const $anchor = await page.$('a.buy-now'); ... adding methods like page.$$(). See Question&Answers more detail:os...

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

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