Recent questions tagged JavaScript

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javascript - $window.location.origin gives wrong value when using IE

$window.location.origin returns the wrong value on IE. The origin property returns the protocol, hostname and port ... right value on IE? See Question&Answers more detail:os...

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

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184 views

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javascript - jQuery - Dynamically Create Button and Attach Event Handler

I would like to dynamically add a button control to a table using jQuery and attach a click event handler. ... I accomplish this using jQuery? 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 - Using .env files for unit testing with jest

Is it possible to load environment variables from an env file for unit testing purposes in Jest? I'm looking to ... = 'your callback endpoint'; See Question&Answers more detail:os...

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

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398 views

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javascript - Inline CSS styles in React: how to implement media queries?

I quite like the inline CSS pattern (video) in React and i am thinking about using it. However i have a ... using React's inline CSS pattern. See Question&Answers more detail:os...

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

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252 views

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javascript - Using es6 spread to concat multiple arrays

We all know you can do: let arr1 = [1,2,3]; let arr2 = [3,4,5]; let arr3 = [...arr1, ... ... how do you make this dynamic to concat N arrays? See Question&Answers more detail:os...

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

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175 views

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javascript - How to delete an npm package from the npm registry?

Is there a possible way to remove or delete the entire module from npm registry? Notice: npm -f unpublish ... anything older than 24 hours See Question&Answers more detail:os...

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

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673 views

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javascript - 'new' expression, whose target lacks a construct signature in TypeScript

We have the following TestComponent.ts TypeScript class: 01: import TestVectorLayer from './TestVectorLayer' 02: 03: export class ... : "~2.2.1" 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 - how to select n-th td of a tr using jquery

How can I select nth < td > of a < tr > using jquery. Say, I want to select 3rd < td >. I have id for every tr. How can we achieve 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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618 views

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javascript - Npm postinstall only on development

I have npm module with following package.json { "name": "my-app", "version": "0.0.0", "scripts": { ... but not after npm install --production? See Question&Answers more detail:os...

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

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476 views

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javascript - Google Firebase Error(Function returned undefined, expected Promise or value)

I'm developing Server with Firebase. I had copied Google Developer's Video on Youtube. It works well, but on ... m beginner of Firebase, Nodejs. See Question&Answers more detail:os...

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

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286 views

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javascript - Prevent form submitting when pressing enter from a text input, using Vue.js

I am using Vue.js in my app and have a text input within a form <div id="myVueForm"> <form> <input type= ... as it seems quite a common usage. See Question&Answers more detail:os...

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

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342 views

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javascript - How to annotate Express middlewares with JSDoc?

I'm trying to document an Express middleware, but the build-in validation tool in WebStorm tells me that types ... JSDoc? Thanks for any help. See Question&Answers more detail:os...

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

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283 views

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javascript - How can I write a simple gulp pipe function?

I've been trying for a day to write two pipe functions, one that compiles less files and another one that concats ... pipe. How can I send it? See Question&Answers more detail:os...

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

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805 views

1 answer

javascript - Prevent line/paragraph breaks in contentEditable

When using contentEditable in Firefox, is there a way to prevent the user from inserting paragraph or line breaks ... enter or shift+enter? See Question&Answers more detail:os...

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

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365 views

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javascript - Can't find Typescript compiler: Command "tsc" is not valid

Just installed Typescript extension to VS2012 and followed Install TypeScript for Visual Studio 2012 and then the tutorial ... is not valid.). See Question&Answers more detail:os...

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

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178 views

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javascript - How can I use knockout's $parent/$root pseudovariables from inside a .computed() observable?

Inside a knockout.js binding expression, I can use the $data, $parent, and $root pseudovariables. How can I ... my own computed observable? See Question&Answers more detail:os...

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

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152 views

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javascript - Highcharts: Format all numbers with comma?

I'm using Highcharts and I want to format all numbers showed anywhere in the chart (tooltips, axis labels.. ... , across the whole chart. See Question&Answers more detail:os...

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

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404 views

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javascript - Module is not available, misspelled or forgot to load (but I didn't)

I am fairly new to angular and using it with JSON api files. TO test, I am trying to use the free ... http://plnkr.co/edit/sZPaFbzbOB6AmVCLL1vq See Question&Answers more detail:os...

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

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341 views

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javascript - What is the reason behind JSLint saying there are "too many var statements"

JSLint (with the onevar flag turned on) is flagging some javascript code that I have with the following: Problem at ... 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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753 views

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javascript - Fix the upstream dependency conflict installing NPM packages

Trying to npm install vue-mapbox mapbox-gl and I'm getting a dependency tree error. I'm running ... fixing this upstream dependency conflict? See Question&Answers more detail:os...

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

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141 views

1 answer

javascript - JSON.stringify returning []

Why would JSON.stringify() return: [] The same happens with jQuery: $.JSON.encode() What could cause this? ... encode methods are returning []. See Question&Answers more detail:os...

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

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353 views

1 answer

javascript - Why does jQuery show/hide use display:none instead of visibility:hidden?

display:none means that the element isn't rendered as part of the DOM, so it's not loaded until ... visibility:hidden and visibility:visible? See Question&Answers more detail:os...

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

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445 views

1 answer

javascript - Round moment.js object time to nearest 30 minute interval

I was trying to round the moment.js time object to next nearest 30 minute interval. But looks my logic us wrong. Ex: 10 ... D YYYY, h:mm:ss a"); See Question&Answers more detail:os...

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

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346 views

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javascript - How to get input textfield values when enter key is pressed in react js?

I want to pass textfield values when user press enter key from keyboard. In onChange() event, I am getting the value of ... ={true} /> ) } } See Question&Answers more detail:os...

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

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207 views

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javascript - Can I mock functions with specific arguments using Jest?

I want to mock a function with Jest, but only if it is called with specific arguments, for example: function ... Jest? Thanks for your feedback. See Question&Answers more detail:os...

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

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165 views

1 answer

javascript - How to get value from Object, with default value

I constantly find myself passing config values to functions accessing them like this: var arg1 = 'test1'; ... sometimes contain parameter names. See Question&Answers more detail:os...

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

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808 views

1 answer

javascript - UglifyJS throws unexpected token: keyword (const) with node_modules

A small project I started make use a node module (installed via npm) that declares const variables. Running and ... Butternut and seem to work. See Question&Answers more detail:os...

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

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146 views

1 answer

javascript - jQuery "Does not have attribute" selector?

I can find a div that has an attribute like so: $('.funding-plan-container[data-timestamp]') But if I try ... , and hence is useful. 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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