javascript es2015 class

To set the style of an element by using the ClassName property: The id= "P1" element is added to the "class name one" style by classname. When you click the "Add Style" button, the first paragraph of text adds a style. The id= "P2" element is modified by classname to the style "class name is two". When you click the "Change Appearance" button, the second paragraph of text changes style.

I will not ' use strict ', so the article is not rigorous. Originally, the current JavaScript is what you love to see it what it is.For example, what do you think of this remark:var o = new SomeClass ();Create a pair of classes, yes. At first glance, you don't know if this is C # or JavaScript. What about the definition of this class?function SomeClass () { (fun

The prototype of the javascript class. Here I would like to put it simply: javascript itself does not have strict Inheritance like java. We say that javascript inheritance, it is also similar to the object-oriented language, so although javascript supports object-oriented pr

But there is no class concept in JavaScript, the so-called class is also simulated, through the function of the closure to simulate the class members and private members (for closures can see crossing boundaries: Closures)。 Here we will look at the "class" in

In small projects for JavaScript use, just write a few function on the line. But in large projects, especially in the development of the pursuit of a good user experience of the site, such as SNS, will use a lot of javascrpt, sometimes JavaScript workload than C #, then write a bunch of function, it will appear very messy, disorganized, even a naming conflict, It's cumbersome to manage and maintain. In this

do is often incredible, and some functions can even be equivalent to the desktop program. Now we can start with a javascript development framework prototype_1.3.1 (prototype. I would like to introduce the advanced javascript applications first, but I am afraid that the level is not enough and that it is not organized. Therefore, combined with prototype, I will mention js syntax usage by the way. The follo

A JavaScript class library for table content sorting. It's easy to use and you don't have to call the database every time. Especially suitable for the sorting of multiple table queries. Plus the Effect Demo Usage: 1. Add JS 2. Add table, Note: Must have id,class for "sortable" OK, that's it, easy. If you feel too monotonous, add your own CSS, the official gave t

First of all, we need to declare that at least no class exists in Javascript so far. The so-called "class" is actually not a real class, it is just like a class in other object-oriented languages. Its essence is Function + prototype ). Some people say that

These years have focused on project management, with fewer codes. These days more idle, want to the original experience precipitation down, one is to do a good record, later if you forget to get back as soon as possible, the second is to write a blog, is to practice writing it.In this case, the JavaScript class library was written. As we all know, Javacript is a very interesting language. Although it is the

desktop program. Now we can start with a javascript development framework prototype_1.3.1 (prototype. I would like to introduce the advanced javascript applications first, but I am afraid that the level is not enough and that it is not organized. Therefore, combined with prototype, I will mention js syntax usage by the way.The following is the first two pieces of code in the framework: Var Prototype = {Ver

Almost 20 years ago, when JavaScript was born, it was just a simple web scripting language. If you forget to fill in the user name, it jumps out a warning.Today, it becomes almost omnipotent, from the front-end to the back-end, with a variety of unthinkable uses. Programmers use it to accomplish larger and larger projects.The complexity of JavaScript code also rises linearly. A single page contains 10000 li

In daily website development and web application development, we often need to effectively call functions related to date and time formats for Javascript processing, javascript contains some of the most basic built-in processing methods. Of course, if you have time, you can develop and compile the required methods by yourself. However, it is certainly a better way to effectively use the

enumerable:true,//can be enumerated configurable:true//Property Description can be modified } }); o.p1//123o.p2// "abc" o.p3// "123abc" Note that get cannot be present at the same time as value or writable to describe unified properties 4. Check whether the property is enumerable Object.prototype.propertyIsEnumerable () user.propertyisenumerable (' toString '); 5. Prohibit dynamic expansion of objects Object.preventextensions (object); var o = new Object ();Object.isextensible (o)//T

Original address: http://www.cnblogs.com/zhangpengshou/archive/2012/07/19/2599053.htmlThe combination of Meizz code makes the appropriate adjustments.Date.prototype.Format =function(FMT) {varthat = This; varPostfix =false; varo = { "m+": This. GetMonth () + 1,//Month"D+": This. GetDate (),// Day"H +":function () { returnPostfix? (that.gethours ()% = = 0? 12:that.gethours ()% 12): That.gethours (); }, //Hour"m+": This. getminutes (),//minute"S+": This. getseconds (),//Second"q+"

The alert () method is used to display a warning box with a specified message and a confirmation button.GrammarAlert (Message) In parentheses can be (string or variable)Example:1 Note: Alert pops up the message dialog box (contains a OK button).Result: Pop-up message box sequentiallyComplete Example:123456 A - - the -The Javascript-alert of Mu-class net

Requirements are as follows: 1. Show the names of all the people in the class on the Web page. 2. Click the Start button, the person's color began to change, when the stop, there will be a different color position, then this position is to be point to the classmate. The approximate graphical interface is as follows: The following is a detailed analysis of the above requirements analysis as follows: 1. Initialize such a page and set the

Beginner JavaScript Write a judge browser type of function (class), not very perfect, but after all, the first time to write Dongdong, commemorate! [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform]

Function is used to create functions or methods in javascript. To implement object-oriented programming, class is an indispensable role and the main character. However, javascript does not have the concept of a class. The so-called class is also simulated. The

APIs. Classes (Note: Avoid class inheritance.) Read how to use the class and Sleep at night.) Generators Async/wait: In my opinion, the best way to write asynchronous code looks synchronous. It has a learning curve, but once you learn it, the code is easier to read. Performance: RAIL?—? starts with Pagespeed Insights webpagetest.org Progressive

enrich your JavaScript class libraryEvery good developer will form its own class library, and as a Java developer, we will also write a bunch of tool classes to simplify our development efforts. But as a full station siege lion, not only to understand the formation of Java class Library,