Recent questions tagged Javascript

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javascript - Sending data to Database in React.js web application

I'm creating a web application and I'm curious how to send data to MySQL database in it. I have a function ... idea to get me started. Regards 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 - BackboneJS Rendering Problems

For the last six months I've been working with Backbone. The first two months were messing around, ... Templates using UnderscoreJS templates. 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 - display images fetched from s3

I want to fetch images from s3 and display them on my HTML page. Angular HTML file: <section data-ng- ... obj) using the HTML image tag 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 - Slick.js: Get current and total slides (ie. 3/5)

Using Slick.js - how does one get current and total slides (ie. 3/5) as a simpler alternative to the ... ://jsfiddle.net/frank_o/cpdqhdwy/1/ 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 - Dynamic V-model name in a v-for loop Vue 2

I am developing an application and I am using Vue 2 as the javascript framework, inside a v-for loop I need ... the v-model working as well? 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 - Equivalent to componentDidUpdate using React hooks

tldr; How do I simulate componentDidUpdate or otherwise use the key prop with an array to force my component to ... = [...listOfObjects]. 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 - What does `precision mediump float` mean?

In the learningwebgl tutorial1 I've found an interesting line in the fragment shader. precision mediump float; ... precision mediump float mean? 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 - What is the convention in JSON for empty vs. null?

I know that in most programming scenarios, the preference is for empty collections to null collections when there ... , booleans, and strings? 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 - How to get minified output with browserify?

Just started to use browserify, but I cannot find documentation for how to get it spilling out minified output. So ... js > bundle.js --minified 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 - How To Create Mongoose Schema with Array of Object IDs?

I have defined a mongoose user schema: var userSchema = mongoose.Schema({ email: { type: String, required: ... has no method 'cast' See Question&Answers more detail:os...

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

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166 views

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javascript - Using jQuery to see if a div has a child with a certain class

I have a div #popup that is dynamically filled with several paragraphs with the class .filled-text. I'm trying to ... ; } }); Any suggestions? See Question&Answers more detail:os...

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

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329 views

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javascript - is there a function in lodash to replace matched item

I wonder if there is a simpler method in lodash to replace an item in a JavaScript collection? (Possible duplicate but ... .push(newval); } }; See Question&Answers more detail:os...

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

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326 views

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javascript - [Vue warn]: Cannot find element

I'm using Vuejs. This is my markup: <body> <div id="main"> <div id="mainActivity" v-component="{{ ... : #main What am I doing wrong? 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 - Server side rendering with react, react-router, and express

I'm trying to set up server-side rendering for my react app and I'm trying to use the great react-router ... at require (module.js:384:17) See Question&Answers more detail:os...

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

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190 views

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javascript - jQuery Optimization/Best Practices

Ok saddle up cowboys, because this is going to be a long one. I have been spending the morning going through some of ... If you haven't, :p ? See Question&Answers more detail:os...

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

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129 views

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javascript - How do I connect bower components with sails.js?

I'd like to be able to install Javascript dependencies through bower and use them in a sails.js app, but ... /libraries with Sails are welcome. See Question&Answers more detail:os...

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

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287 views

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javascript - What's the best way to automatically redirect someone to another webpage?

I've never learnt JavaScript, but I imagine this is quite a simple problem. Just wanted to know which method is most advised these days. See Question&Answers more detail:os...

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

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455 views

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javascript - HTML2Canvas does not render full div, only what is visible on screen?

I'm trying to use HTML2Canvas to render the contents of a div. Here is the code: var htmlSource = $(' ... having to scroll to the top? See Question&Answers more detail:os...

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

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246 views

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javascript - Confused about useBuiltIns option of @babel/preset-env (using Browserslist Integration)

I'm working on a web project using Babel 7 with Webpack 4. I've never used Babel before and can't ... my original question seems stupid :) 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 - Parsing Query String in node.js

In this "Hello World" example: // Load the http module to create an http server. var http = require('http') ... to use it. Could anyone explain? See Question&Answers more detail:os...

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

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166 views

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javascript - Remove non-ascii character in string

var str="INFO] :谷???新道, ひば???ヶ丘２丁???, ひばりヶ???, 東久留米市 (Higashikurume)"; and i need to remove ... means str only contain "INFO] (Higashikurume)"; See Question&Answers more detail:os...

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

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600 views

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javascript - Jest: Better way to disable console inside unit tests

I wonder if there is a better way to disable console errors inside a specific Jest test (i.e., restore the ... seems to work with it. 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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369 views

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javascript - Cleaning up sinon stubs easily

Is there a way to easily reset all sinon spys mocks and stubs that will work cleanly with mocha's beforeEach ... () assert.called some.method 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 - Scroll back to the top of scrollable div

<div id="containerDiv"></div> #containerDiv { position: absolute; top: 0px; width: 400px; height: 100%; ... container div the next time? 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 does Facebook keep the header and footer fixed while loading a different page?

When browsing through Facebook pages the header and fixed footer section remain visible between page loads AND ... that technically speaking? See Question&Answers more detail:os...

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

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130 views

1 answer

javascript - Configure a generic jQuery plugin with Browserify-shim?

I'm using browserify-shim and I want to use a generic jQuery plugin. I have looked over the Browserify- ... with browserify and browserify-shim? See Question&Answers more detail:os...

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

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122 views

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javascript - Clearing state es6 React

I am trying to clear a components state but can't find a reference for the es6 syntax. I was using: this. ... would I achieve the same result? See Question&Answers more detail:os...

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

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889 views

1 answer

javascript - PWA: How to programmatically trigger : "Add to homescreen"? on iOS Safari

I released a server rendered progressive web app recently and everything works great so far. However, Android ... prototype to the homescreen. See Question&Answers more detail:os...

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

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