JavaScript

The first time I used the essay, it was quite awkward. A.html demo   B .html New Document  

In dom operations, a single object is sometimes obtained based on the id, and multiple objects are sometimes obtained based on the className. In dom operations, a single object is sometimes obtained based on the id, and multiple objects are

JavaScript has the most distinctive function that puzzles you, but the OO language The most distinctive and confusing function in JavaScript is one. Let's take a look at the common operations below: function doit(){.....}doit(); Functions in

Many Web pages place a "Back to Top" button at the bottom, especially those without navigation at the bottom of the page. Many Web pages place a "Back to Top" button at the bottom of the page, especially those without navigation at the bottom of the

Most existing frameworks provide this part of content, and Language extension should be based on ECMAScript. In this era where js frameworks run around, have you ever considered writing your own framework? The following content may be helpful.What

Check some documents, mainly for browser support issues. Both the type and language attributes can be used to specify the s A question was asked:

In JavaScript development, I was asked: What is the difference between null and undefined? In JavaScript development, I was asked: What is the difference between null and undefined? It is hard to answer at a time, especially undefined, because it

The code above shows that all javascript objects, including Array objects, are In javascript, an object is actually a hash table, such as the following user object: function user(n, a){ this.name = n; this.age = a; this.toString = function(

As we all know, the identifier of the name function expression is only valid in the local scope of the function. But As we all know, the identifier of the name function expression is only valid in the local scope of the function. But what does the

I recently saw a new Javascript applet, Streams, on the Internet. I recently saw a new Javascript applet, Streams, on the Internet. I thought it was a common Javascript class library, but after reading the introduction about it, I found that, this

This specification is designed for javascript functional programming styles and companies that rely heavily on jQuery. This specification is developed based on the reality that javascript functional programming styles and companies rely heavily on

As a developer (WEB Front-end JavaScript development), nonstandard development not only makes future generations As a developer (WEB Front-end JavaScript development), nonstandard development not only makes code maintenance difficult in the future,

Let's take a look at some important features related to the scope chain and function [scope] attributes. In ECMAS Let's take a look at some important features related to the scope chain and function [scope] attributes.Closure In ECMAScript, the

Previous In the past, we wrote some really terrible code in a very fashionable way on the page, which brought us great trouble. Maybe many people are still doing this, but they won't read this blog, and we can pretend they don't exist. The

To create a page, you need to use this function, that is, when the mouse goes through the thumbnail, the thumbnail's big image is displayed at the same time. To create a page, you need such a function: When the mouse goes through the thumbnail, the

If a function has a name, the debugger displays its name on the called Stack during debugging. Some debuggers If a function has a name, the debugger displays its name on the called Stack during debugging. Some debuggers (Firebug) Sometimes name your

We know that this anonymous function calls the returned function (the function with the identifier g), and then assigns the value to the external f After learning about these non-conforming code parsing bugs, if we use them, we will find the memory

When I was a beginner at JS, I knew this function, but I never understood its purpose, and I kept my eyes closed. When I was a beginner at JS, I knew about this function, but I never knew about its purpose. I always kept one eye closed and one eye

The prototype function can be used to define some convenient user-defined functions to implement various user-defined functions. You can use prototype to define some convenient custom functions and implement various custom functions. The working

In his new book, the outstanding StoyanStefanov In his new book (Javascript Patterns), Stoyan Stefanov introduces many techniques for writing high-quality code, such as avoiding using global variables and using a single var keyword, cyclic