Recent questions tagged Javascript

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javascript - Vanilla web-component structure

I am looking into structuring vanilla web-components. I have previously used Polymer and like the fact ... using document.createElement. 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 - verticesNeedUpdate in Three.js

I want to use dat.GUI to manipulate the coordinates of a mesh vertices. At first I thought I could have ... to be on Three.js documentation See Question&Answers more detail:os...

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

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237 views

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javascript - Custom template(transclusion without ng-content) for list component in Angular2

I have a list component which shows only names. list component should be able to take custom template which ... in angular2. Here is Plunker 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 - How to extract image orientation information from image loaded in Canvas

I am creating a web app in which it allows image upload directly in the canvas. Sometimes, when images are ... Any help is much appreciated. 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 - Why the subtle cross-browser differences in Event Object

The following declaration at the window level: var event; // for IE var event = "anything"; // for Chrome ... if anyone had any insights here. See Question&Answers more detail:os...

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

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353 views

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javascript - How to know information about the clicked bar in highchart column r shiny plot

I want to detect some information when the user clicks in a bar of a column highchart plot. I need to ... click on the plot background? 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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javascript - Accessing JSON service from localhost or file://

I am making a html page intended to be run locally on a PC, preferably without a local server runing (file://) ... know how I can fix 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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252 views

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javascript - Sorting by date with underscore.js or just plain JS

I have an array of objects that have a 'date' string property. ie: [ { id: 1, startDate: '2011-4-22 ... just plain javascript will do. 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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javascript - Rails 4 Turbolinks make form submit multiple times

I use some code working nicely on Rails 3 but not on Rails 4, I guess it is caused by Turbolinks but ... will be created thanks in advs 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 - Dynamically created SVG elements are not rendered by the browser

I am trying to use SVG markup in my HTML in order to render some graphics. The problem was very tricky because I just ... ="15"></circle> </svg> See Question&Answers more detail:os...

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

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150 views

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javascript - React binding this to a class method

So i'm reading a book on React which said I have to bind my methods like this.onClickMe = this.onClickMe.bind ... does it do vs my above 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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304 views

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javascript - Google Maps API v3 - IP-based Geolocation

Has anyone been able to get geo-location based on a person's IP to work using Google Maps API v3 JavaScript? ... work using Google Maps API v3? See Question&Answers more detail:os...

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

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345 views

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javascript - Need to set cursor position to the end of a contentEditable div, issue with selection and range objects

I'm forgetting about cross-browser compatibility for the moment, I just want this to work. What I'm doing is ... in the range. Any ideas? See Question&Answers more detail:os...

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

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319 views

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javascript - Good "background-size: cover" fallbacks/shims/tricks for cross-browser compatibility on DIVs?

So I'm using background-size:cover to achieve the desired effect of a background image that scales to any size of ... it in action over here. See Question&Answers more detail:os...

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

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170 views

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javascript - Use jQuery select() to select contents of a div

Is it possible to use or adapt jQuery's .select() to set a selection range on the entire contents of a ... will be accomplished. Any ideas? See Question&Answers more detail:os...

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

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137 views

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javascript - IE and local file reading

I've just watched the mozilla File API file reading as new FileReader(); etc. and I must ask is there something like that for IE? See Question&Answers more detail:os...

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

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205 views

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javascript - Why is it considered a bad idea to manipulate DOM in controllers?

Many People have told me that it is a very bad thing to manipulate DOM in controllers, but what exactly is the ... that and how is it done? See Question&Answers more detail:os...

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

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182 views

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javascript - Is it a bug in Ecmascript - /S/.test(null) returns true?

Both in Actionscript3 and Javascript these statements give the same result: /S/.test(null) => true /null/.test( ... or am I missing something? See Question&Answers more detail:os...

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

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131 views

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javascript - AngularJS: download pdf file from the server

I want to download a pdf file from the web server using $http. I use this code which works great, my file only ... max=1 What am I doing wrong? See Question&Answers more detail:os...

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

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141 views

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javascript - Copying from form to form in jQuery

I had a requirement to copy all fields from one form to another similar form. So instead of copying field by field I ... </p> </body> </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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231 views

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javascript - escaping special character in a url

I am using a url to open a html page, and i am sending data in querystring withe the page url. For example ... any body please help me out 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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304 views

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javascript - Array of Array, JSON.stringify() giving empty array instead of entire object

Here's my array (from Chrome console): Here's the pertinent part of code: console.log(hours); var data = ... ajax data but the problem remains. See Question&Answers more detail:os...

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

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136 views

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javascript - Access event object in event handler

When i try to attach event handler functions with parameters like : myhandle.onclick = myfunction(param1,param2); ... a native JS option. See Question&Answers more detail:os...

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

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237 views

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javascript - Using setInterval in React Component

I was reading the tutorial on the official react website. In the example about life cycle methods, under the ... .getElementById('root') ); See Question&Answers more detail:os...

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

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619 views

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javascript - SyntaxError: Invalid or unexpected token at createScript (vm.js:80:10)

I've just arted to learn node, and when executing a very simple app from a powershell terminal: node app.js I am ... }); What am I doing wrong? See Question&Answers more detail:os...

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

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273 views

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javascript - Closing child pop-up and refreshing the parent page

I am trying to achieve the following. A link on a parent page will open a new child pop-up. In the child ... parent page) be done in Javascript? See Question&Answers more detail:os...

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

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250 views

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javascript - Click area on sprite in canvas

I'm creating a game in Javascript. currently the sprites are div elements with a background image that is updated ... with pre-made click maps. See Question&Answers more detail:os...

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

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140 views

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javascript - Global variable for react

I don't know, how to use a global variable. I want to make "this.props.topic.text" a global variable ... topic: PropTypes.object.isRequired, }; See Question&Answers more detail:os...

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

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