Recent questions tagged javascript

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javascript - requestAnimationFrame garbage collection

I'm profiling the following code's memory usage using the Timeline in Chrome Dev Tools v27. <!DOCTYPE html> <html> ... way to avoid this? Thx. 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 - AngularJS: initialize ZURB Foundation JS

I am using both AngularJS and Foundation. To initialize Foundation JS, you have to make the following call: ... that Foundation is initialized? 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 - Uncaught SecurityError: Failed to execute 'replaceState' on 'History': cannot be created in a document with origin 'null'

I really don't get this chrome error: Uncaught SecurityError: Failed to execute 'replaceState' on 'History': ... > Any help 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 - Auto refresh in ASP.NET MVC

In webforms I'd do <script type="text/JavaScript"> function timedRefresh(timeoutPeriod) { setTimeout("location.reload ... in ASP.NET MVC3 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 can I get the progress of a downloading <script>?

Let's say, for example, I'm creating a game. I have a small script whose job is to load all the assets ... of the second script to the user? 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 - Importing multiple files in react

I am using create-react-app for my react project. It has got webpack configured for importing images. I wish to ... the variable to a string) 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 correctly use ES6 "export default" with CommonJS "require"?

I've been working through Webpack tutorial. In one of the sections, it gives the code example that contains ... code that uses CommonJS syntax? See Question&Answers more detail:os...

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

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427 views

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javascript - Event target is null inside functional setState

Consider below function of some component: handleInputChange(e) { // let val = e.target.value; - if I uncomment ... it works well. Ideas 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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javascript - Reset a model with angular.js

I'm simply try to reset values like this : $scope.initial = [ { data1: 10, data2: 20 } ]; $scope.datas= $scope. ... {{data.data2}}</p> </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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javascript - angularjs infinite scroll in a container

I'm trying to use angularjs infinite scroll It seems to work only if the scroll is relative to the browser ... the inner content div scrollbar? See Question&Answers more detail:os...

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

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215 views

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javascript - Exclude route from express middleware

I have a node app sitting like a firewall/dispatcher in front of other micro services and it uses a ... before_filter using :except/:only? See Question&Answers more detail:os...

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

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192 views

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javascript - jQuery watch for domElement changes?

I have an ajax callback which injects html markup into a footer div. What I can't figure out is how to ... anything at all. Any thoughts/help? See Question&Answers more detail:os...

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

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745 views

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javascript - How to detect an error 404 in an iframe?

My Web page uses iframes to collect content from other pages. All pages are in the same domain. From the main ... that there is no 404 error? 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 - What is the difference between angular.copy() and an assignment (=)?

I want to assign some values when a button click event happens via event parameter: $scope.update = function(context) { ... copy() and equal(=). See Question&Answers more detail:os...

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

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213 views

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javascript - Best way to restrict a text field to numbers only?

I'm using the following Javascript to restrict a text field on my website to only accept numerical input, and ... my original script. Oh well. See Question&Answers more detail:os...

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

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168 views

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javascript - GraphQL: Non-nullable array/list

I'm learning GraphQL now and while walking through tutorial I met behavior that I can't understand. Let's say ... due to schema). 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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273 views

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javascript - Disabling some jQuery global Ajax event handlers for a request

Suppose that I have some global Ajax event handlers defined (ajaxStart, ajaxStop, and ajaxError). Usually I am fine ... anyone wants to see it. See Question&Answers more detail:os...

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

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240 views

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javascript - How to disable cache in InternetExplorer 8

How can I disable cache in IE8 ? We are doing Javascript development and testing it in IE8, but we have ... changes to the Javascript files. See Question&Answers more detail:os...

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

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277 views

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javascript - Is it possible to make an in-app button that triggers the PWA "Add to Home Screen" install banner?

I understand that with a properly made Progressive Web App mobile browsers will display a banner prompting users to ' ... snapdrop.net did it. See Question&Answers more detail:os...

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

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160 views

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javascript - How to convert jQuery.serialize() data to JSON object?

Is there any better solution to convert a form data that is already serialized by jQuery function serialize(), ... "[email protected]"} ] } See Question&Answers more detail:os...

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

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138 views

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javascript - replace callback function with matches

need to replace <wiki>this page</wiki> to <a href='wiki/this_page'>this page</a> using callback function ... in PHP's preg_replace_callback()? 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 - HTML5 Drag and Drop - No transparency?

When I drag and drop an element on my page the element becomes "ghosted". Basically it gets some transparency value. ... to make it opacity: 1;? See Question&Answers more detail:os...

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

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211 views

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javascript - Passing props with programmatic navigation Vue.js

I have a Vue component that has a prop named 'title' e.g: <script> export default { props: ['title'] ... anything that could be causing issues? See Question&Answers more detail:os...

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

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144 views

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javascript - How do I reload the page without the query parameters?

Let's say I want to reload www.domain.com/abc?num=4 But I want to reload www.domain.com/abc ONLY (without everything after the question mark) See Question&Answers more detail:os...

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

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227 views

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javascript - Is it possible to pass a component as props and use it in a child Component in Vue?

In a Vue 2.0 app, let's say we have components A, B and C. A declares, registers and uses B ... undefined Apparently I'm doing something 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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176 views

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javascript - How to loop all the elements that match the regex?

Here is the case: I want to find the elements which match the regex... targetText = " ... T3 ... ... See Question&Answers more detail:os...

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

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397 views

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javascript - WebSocket on IE10 giving a SecurityError

I am currently developing a website under IE10 (on Windows 8), using WebSockets in JavaScript. It runs fine under ... zone does not work either. See Question&Answers more detail:os...

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

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263 views

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javascript - jQuery: Checking if next element exists

Is there a way to check if an next element exists? Check my code: if($("#people .making-of .mask ul li. ... am I doing wrong? Thanks a lot! See Question&Answers more detail:os...

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

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