Recent questions tagged javascript

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javascript - Create a waveform of the full track with Web Audio API

Realtime moving Waveform I'm currently playing with Web Audio API and made a spectrum using canvas. function ... loadMusic('AudioOrVideo.mp4'); 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 - AngularJS really slow at rendering with about 2000 elements?

Here's the fiddle: http://jsfiddle.net/D5h7H/7/ It renders the following: <div ng-repeat="group in Model. ... but 2sec. is certainly big)? 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 can I use HTML5 geolocation in angularjs

How can I use HTML5 geolocation in angularjs? I can get it using HTML5; but how can I pass it to angularjs ... sample jsfiddle will save my day! 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 - Running a command with gulp to start Node.js server

So I am using gulp-exec (https://www.npmjs.com/package/gulp-exec) which after reading some of the ... help is appreciated, thank you. 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 - HTML5 Boilerplate plugins.js

How is one expected to include additional js files in plugins.js? Is the expectation that we just copy and paste the ... ($){ })(this.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 - Pdf file size too big created using jspdf

I am using jspdf for creating PDF inside browser. I am having multiple charts having svg as chart Data. For ... me decrease the file size? 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 - Cannot set property 'display' of undefined

I'm writting script to hide/show menu but I get some troubles. function displayMenu() { //var classMenu = event. ... . Thanks for your 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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javascript - Do Immutable.js or Lazy.js perform short-cut fusion?

First, let me define what is short-cut fusion for those of you who don't know. Consider the following array transformation ... { return x + 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 - Year View in Fullcalendar jquery plugin

I started a YearView in fullcalendar (derived from the basic 'MonthView', needed to display longer events such as ... /year-view-test-01.html 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 - React-Native assembleRelease fails for task ':app:bundleReleaseJsAndAssets'

When I run ./gradlew assembleRelease build is failed with this error: Error:Execution failed for task ':app: ... is looking for libs folder. 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 - I know its bad to store data in the DOM, but why?

I've heard over and over again that it is bad practice to "use the DOM as a database." While I mostly ... data in this kind of situation? 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 $inject dynamically dependence in a controller

I'm still a debutant on Angularjs. I want to inject dynamically a dependency of a service (that I created) ... //jsfiddle.net/yrezgui/YedT2/5/ 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 - Detect unsaved data using angularjs

I'm a newbie to AngularJs, so this might be trivial. Are there any inbuilt AngularJs directive to detect ... controller.Correct me if 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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423 views

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javascript - Redux: what is the correct way to filter a data array in reducer?

i want to filter an array on search SEARCH_TEXT is an on change action what I'm confused with is how i return the ... ) } else { return state } 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 - Only numbers. Input number in React

I'm trying to exclude minus and plus from input, but it's going wrong: handleChange(event) { const value ... } onChange={this.handleChange}/> See Question&Answers more detail:os...

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

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147 views

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javascript - How to stop Meteor?

The only answer on this question I saw - go start another copy on the different port. Switching from one Meteor ... how to stop the first one? See Question&Answers more detail:os...

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

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137 views

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javascript - How to Lazy Load div background images

As many of you know it is widely used to lazy load images. Now i want to use this as lazy load div background ... } }); Jquery plugin lazy load 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 - Uncaught InvalidStateError: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state

When my page loads, I try to send a message to the server to initiate a connection, but it's not ... am testing using Chromium on Ubuntu. See Question&Answers more detail:os...

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

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425 views

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javascript - How to use useStyle to style Class Component in Material Ui

I want to use useStyle to style the Class Component . But this can be easily done hooks. but i want to use ... /div> } } export default SignIn; 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 - typeof is an operator and a function

In JavaScript typeof is an operator and a function. Is it better used as an operator or a function? Why? See Question&Answers more detail:os...

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

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163 views

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javascript - node.js - how to write an array to file

I have a sample array as follows var arr = [ [ 1373628934214, 3 ], [ 1373628934218, 3 ], [ 1373628934220, 1 ], [ ... , 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 get the latest and oldest record in mongoose.js (or just the timespan between them)

Basic problem I have a bunch of records and I need to get latest (most recent) and the oldest (least recent). When ... null, 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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109 views

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javascript - How to make an iterator out of an ES6 class

How would I make an iterator out of an ES6 class in the same manner as JS1.7 SomeClass.prototype.__iterator__ = ... errors for *generator().) See Question&Answers more detail:os...

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

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171 views

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javascript - Google Maps Autocomplete Result in Bootstrap Modal Dialog

I have a Google Maps Autocomplete input field inside a Twitter Bootstrap modal dialog and the autocomplete result is ... helps? Thanks before! 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

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javascript - What does registerServiceWorker do in React JS?

I'm a newbie in React and I was wondering what is the purpose of registerServiceWorker() in the following ... root')); registerServiceWorker(); See Question&Answers more detail:os...

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

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164 views

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javascript - Call a method of the child component

I have a nested child component like this: <app-main> <child-component /> </app-main> My appMain component ... a method on the child-component? See Question&Answers more detail:os...

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

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257 views

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javascript - How can I put an icon inside a TextInput in React Native?

I am thinking of having something like this https://android-arsenal.com/details/1/3941 where you have icon that ... and Touchable side by side? See Question&Answers more detail:os...

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

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371 views

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javascript - React-Native another VirtualizedList-backed container

After upgrading to react-native 0.61 i get a lot of warnings like that: VirtualizedLists should never be nested ... not to use like that? See Question&Answers more detail:os...

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

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