Recent questions tagged Javascript

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javascript - Choppy/Laggy scroll event on Chrome and IE

I am trying to have a content block always be shown to the user, even if he scrolls way down the page. He ... effect in a different 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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654 views

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javascript - React Native: Using lodash debounce

I'm playing around with React Native and lodash's debounce. Using the following code only make it work like a ... it logs "debounce" 3 times. 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 - Mocking and Stubbing with protractor

I want to test my angular app with protractor. The app has an API Module that talks to the server During ... with the deprecated ng-scenarios. 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 - display HTML page after loading complete

Is there a way to force the browser to display a page only after all of the page's contents are completely ... images, scripts, css, etc)? 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 - Difference between and

What is the difference between and in a regular expression? Can someone explain it with an example? See Question&Answers more detail:os...

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

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401 views

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javascript - function F() { if (!(this instanceof F)) { return new F() }; ... }

What is the usage of the construct: function F() { if (!(this instanceof F)) { return new F() }; ... }? I found ... ', null); }); env = null; } 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 - gapless looping audio html5

anyone have any idea how to accomplish gapless looping for the audio tag? I'm thinking something javascript based.. ... does not stay in tempo. See Question&Answers more detail:os...

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

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355 views

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javascript - React Hooks useState+useEffect+event gives stale state

I'm trying to use an event emitter with React useEffect and useState, but it always gets the initial state instead ... ); } export default App; 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 - Puppeteer wait for all images to load then take screenshot

I am using Puppeteer to try to take a screenshot of a website after all images have loaded but can't get it to work ... ; browser.close(); })(); 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 - Is there a way to pass variables into templates in Meteor?

I've been experimenting with Meteor and ran into something I couldn't figure out. For fun, I was trying to make a ... and there's a better way. See Question&Answers more detail:os...

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

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412 views

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javascript - Mongoose: multiple query populate in a single call

In Mongoose, I can use a query populate to populate additional fields after a query. I can also populate ... that for multiple populate calls. 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 - Getting Cannot read property 'offsetWidth' of undefined with bootstrap carousel script

I created a carousel with Bootstrap 3.3 and it works on my local machine, but when I upload the whole ... any known solutions to this 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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309 views

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javascript - Angular2 dynamic change CSS property

We are making an Angular2 application and we want to be able to somehow create a global CSS variable (and update ... -color' | cssvariable }} } See Question&Answers more detail:os...

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

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559 views

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javascript - Remove x-axis label/text in chart.js

How do I hide the x-axis label/text that is displayed in chart.js ? Setting scaleShowLabels:false only ... lineChartData,options); </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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513 views

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javascript - React - setState() on unmounted component

In my react component im trying to implement a simple spinner while an ajax request is in progress - im using state to ... Table > </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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529 views

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javascript - What is the difference between Event.target, Event.toElement and Event.srcElement?

I have the following code: document.oncontextmenu = function(evt) { evt = evt || window.event; console.log( ... different use than the others? See Question&Answers more detail:os...

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

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340 views

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javascript - Disable underline for lowercase characters: g q p j y?

Sometimes you don't want an underline blindly cutting through an underlined page title! Is there a way to ... /thinness of the underline? See Question&Answers more detail:os...

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

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331 views

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javascript - Update single value in item array | react redux

I have a todo list and want to set the state of that item in the array to "complete" if the user clicks ... is set the completed value to true. See Question&Answers more detail:os...

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

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332 views

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javascript - How to decrypt message with CryptoJS AES. I have a working Ruby example

I'm able to decrypt AES encrypted message with Ruby like this: require 'openssl' require 'base64' data = " ... first 16 bytes in data. See Question&Answers more detail:os...

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

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331 views

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javascript - What is the difference between "event loop queue" and "job queue"?

I can not understand how the following code run. Why "1" is after "b" but "h" is after "3"? ... after Promise's asynchronous operation. 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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350 views

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javascript - Approach to multiple MySQL queries with Node.js

I'm a newbie both on event/callback style programming and NodeJS. I'm trying to implement a little http server ... pattern I'm not following? See Question&Answers more detail:os...

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

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553 views

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javascript - Detect clicked object in THREE.js

I have a THREE.js scene where a lot of elements appear, and I need to detect what object the user is ... object where a user has clicked? See Question&Answers more detail:os...

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

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590 views

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javascript - Push JSON Objects to array in localStorage

I have a function in Javascript: var a = []; function SaveDataToLocalStorage(data) { var receiveddata = JSON.stringify ... know how to do 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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358 views

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javascript - Clear form after submission with jQuery

What's the easiest way to clear this form after refresh. The way I have tried will clear the form but not submit to ... </div> </div> </html> See Question&Answers more detail:os...

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

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417 views

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javascript - How to use jQuery UI Calendar/Date PIcker for week rather than day?

I've been using the jQuery UI Calendar / Date Picker with great success over the last couple months. I've ... single date in textbox / labels 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 - tabs.executeScript - passing parameters and using libraries?

I am writing a Chrome extension that needs to modify pages in a specific domain according to some given ... for example background.html). See Question&Answers more detail:os...

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

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297 views

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javascript - Is it possible to do mathematics inside CSS?

I have jquery accorion id #accordion and some of the content inside header class name .simpleColor. Now I want to ... this if it is possible. See Question&Answers more detail:os...

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

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418 views

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javascript - .js.erb VS .js

What is the advantage to putting you javascript for your rails app into a .js.erb file instead of just throwing ... is a whole other problem. See Question&Answers more detail:os...

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

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