ecmascript-5

问题 When I see the intellisense menu in WebStorm, it shows little circular icons with lettering on them (i.e. "v", "m", "f", "p"). Does anyone know what all the icons mean, or know where there is a reference to understanding WebStorm's intellisense? 回答1: You can find the icons reference in WebStorm help. v - variable m - method f - field p - parameter 来源： https://stackoverflow.com/questions/12215159/jetbrains-webstorm-intellisense

问题 I'm using ES5. I'm learning JavaScript. I did this modal, but I want to re-factor the code that's there, I'm pretty sure there is a better way to do this. If I add 5modals, how will the code know which modal is which? How can I add that functionality as well? I guess it had to do with id's, but how would that be dynamic? Or is that more OOP JS? Here is the code in the codepen - https://codepen.io/lovetocodex/pen/mpxmjY And the modal seems to kinda pop up not as smooth, even though I set

问题 When we use The Less-than-or-equal Operator this is work under the hood with The Abstract Relational Comparison Algorithm. For example. a <= b; Convert to JavaScript like this !(b < a) And EcmaScript Spesification says (http://www.ecma-international.org/ecma-262/5.1/#sec-11.8.5) which indicates that at least one operand is NaN less than return undefined And this is meaning var a = 1; var b = "asd" a < b // b.toNumber() => NaN and this is operation return undefined (false) If we use like this

问题 I am using FCM web JS SDK. It is working fine in ES6 syntax. It uses lots of promises. I need to give support for ES5.I can not use promises. Here is my current JS: // Initialize Firebase var config = { apiKey: 'xxx', authDomain: 'xxxx', databaseURL: 'xxxx', projectId: 'xxxx', storageBucket: 'xxxx', messagingSenderId: 'xxxx' }; if (!firebase.apps.length) { firebase.initializeApp(config); } var vapidPublicKey = 'xxxx'; var convertedVapidKey = urlBase64ToUint8Array(vapidPublicKey); var

问题 When reading some email HTML body, I often have lots of HTML tags, that I don't want anymore. How to remove from a string, in Javascript, all HTML tags like: <anything ...> or </anything> except these few cases <x ...> , </x> , <x ... /> for x being: a br b img I thought about something like: s.replace(/<[^a].*>/g, ''); but I'm not sure how to do it. Example: <div id="hello">Hello</div><a href="test">Youhou</a>` should become Hello<a href="test">Youhou</a> Note : I'm looking for a few lines

问题 I am trying to make an interactive SVG that would react on different user actions (mouse over, click etc.). I am using java Batik, but it will be enough, if you just describe me how to approach my problem in XML. Clicking function works for me just fine. The problem is with hovering (mouse over action). My code looks like this: svgRoot.setAttributeNS(null, "onmouseover", "evt.target.setAttribute('opacity', '0.5');"); svgRoot.setAttributeNS(null, "onmouseout", "evt.target.setAttribute('opacity

问题 ESMA 262 5.1 for many Array.prototype functions say that they are intentionally generic and described in terms of [[Get]] , [[Put]] , etc operations on Object , but also require length property. So them allowed to work on build-in objects, like: obj = {"a":true, "length":10}; Array.prototype.push.call(obj, -1); console.log(obj); // Object { 10: -1, a: true, length: 11 } For native objects standard have note: Whether the push function can be applied successfully to a host object is

问题 Fullcalendar.io is quickly becoming the top-choice library for calendar applications. Is it possible to use it as a <input type="date"> picker? Something like the jQuery UI "Datepicker"? I'd like to have something like... <form> <input type="date"> </form> <script type="text/javascript"> $('input[type=date]').fullCalendar() </script> 回答1: I was able to get something like I wanted with the following, $(document).ready(function() { $('#foo').click( function () { var $input = $(this); alert('bar

问题 I just want to know if there is an object to access a folder path which includes list of clips in javascript. Which object I should use to list clips in a folder? Actually I can't use all objects, only provided for Ecmascript. 回答1: JavaScript/Ecmascript cannot see the local filesystem. If it could then we'd have web pages sniffing all of our files without our consent. 回答2: JavaScript doesn't get to see the user's file system. That'd be a huge security problem for everyone everywhere. If you

问题 All my unit tests have some common code I can run and abstract into a function. However I want to be able to re-use the Core value in every test function makeSuite(name, module, callback) { suite(name, function () { var Core = {}; setup(function () { Core = Object.create(core).constructor(); Core.module("name", module); }); teardown(function () { Core.destroy(); }); callback(Core); }); } makeSuite("Server", server, function (Core) { test("server creates a server", useTheCore); test("server