javascript-framework

问题 In the example project hosted at BoilerplatJS site, when we activate a particular sample module (for example clickCounter) all the scripts in other modules (component.js, viewmodel.js and others) gets loaded in the browser. How to restrict this behavior in case we have to limit modules to users based on some kind of authorization? Thanks! 回答1: There are few things to note here. First regarding the files that load: In your production deployment, all these files will be combined, minified and

问题 Using the Prototype JavaScript framework I've noticed, that the Ajax requests are enriched with a header called X-Requested-With . Do other JavaScript libraries like jQuery, dojo and YUI add headers to their Ajax requests? Is it always called X-Requested-With ? Is this a standard? The full header by Prototype: X-Requested-With: XMLHttpRequest X-Prototype-Version: 1.5.0_rc0 回答1: The X-Requested-With header is sent by default by the following frameworks: Dojo ExtJS jQuery MooTools Node.js

问题 I have the following problem: I use Javascript onclick event to change href of a link. It works like a charm but only if user just clicks a link. If "Open in new tab" feature is used for the link - onclick event will not fire and href will never change. Is there any way to handle such an event? Perhaps with jQuery or some other JS Framework? Example: <a href="some_url" onclick="this.href = 'some_other_url'">Link</a> 回答1: Try to change <a href="some_url" onclick="this.href = 'some_other_url'"

问题 I am very new in Angular 2\4 and I am trying to follow this quick video tutorial to add PrimeNG components to my Angular project: https://www.youtube.com/watch?v=6Nvze0dhzkE and the Get started section of the PrimeNG tutorial page: https://www.primefaces.org/primeng/#/setup So this is my app.component.html view: <!--The whole content below can be removed with the new code.--> <div style="text-align:center"> <h1> Welcome to {{title}}!! </h1> </div> <p-calendar [(ngModel)]="value"></p-calendar>

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: Graph visualization code in javascript? I need to create a dynamic visualization for nodes and their relationships in Javascript. What's the best framework to use? This is what I've briefly reviewed so far: Flare - it's Flash and hasn't been updated in almost 2 years. JavaScript InfoVis Toolkit - interaction seems a little slow, maybe that's on purpose in the demos Protovis - documentation looks great, doesn't

问题 I wrote JavaScript library to use FileSaver.js and its associated libraries. However, I don't want to always load FileSaver.js whenever someone wants to use my library. And I don't want to force them to load all the various FileSaver related JavaScript libraries with script tags themselves (or even load one of mine which would do that). Instead, what I'd prefer is something like this. When they call my createImage function, it first does the following: function createImage(image, name) { if

问题 I working on a socket.io + node project. Just like in this page, http://davidwalsh.name/websocket I am getting "info - unhandled socket.io url" error in socket.io v7. But I dont get this error with v6.17? Do you have any idea with this error? Thanks 回答1: Had the exact issue couple of days back and looks like socket.io had some changes in the API. I have a working demo of socket.io sending and receiving a message - uploaded to https://github.com/parj/node-websocket-demo as a reference

问题 I working on a socket.io + node project. Just like in this page, http://davidwalsh.name/websocket I am getting "info - unhandled socket.io url" error in socket.io v7. But I dont get this error with v6.17? Do you have any idea with this error? Thanks 回答1: Had the exact issue couple of days back and looks like socket.io had some changes in the API. I have a working demo of socket.io sending and receiving a message - uploaded to https://github.com/parj/node-websocket-demo as a reference

问题 Good day everyone. please what is React Native’s replacement of React’s e.target.innerText? I’m trying to get what a user click on from TouchableOpacity component. I’m building a React Native quiz app. I used TouchableOpacity for the options. I’m using onPress function to get the options the user clicks on with <View style={{ flex: 2, flexDirection: 'row', justifyContent: 'space-between' }}> <TouchableOpacity onPress = {(e)=>this.props.onAnswer(e, currentQuestion)}> <View style={{ width: 171

问题 I have a JSON data structure: [ { "title" :"a1", "id" :"b1", "name" :"c1" }, { "title" :"a2", "id" :"b2", "name" :"c2" } ] I am accessing is as an external JSON and parsed through a factory method. I want it to assign it to a Javascript variable in my controller. function Control($scope,data) { var e=data.query(); /* getting the external JSON data */ alert(e[0].title); } It says that e[0] is undefined. Is there any other way I can assign it to a Javascript variable and then traverse through