JavaScript

It may not be a bad thing to have a selective repetition of some wheels. Aaron's Blog adds a floating menu that looks like a big one. Although this kind of trick is not the first time to see, but never wrote it himself. Take this feature and write

0. Premises The properties of a JavaScript object are divided into two existing forms. One is the existence of an instance, the other is the existence of a prototype object. According to the above, there are 4 kinds of cases when detecting

Recently work relaxed point, think of the previous always see a word promise, so patience to learn a bit. One: What is promise? Why would there be such a thing? First, the promise is created to address the way JavaScript writes code in

As for me, self-study JavaScript and no other language learning experience, in the beginning, JavaScript debugging is also a big difficulty, a lot of basic things need to find their own, the process is very depressed. Think of the opportunity will

In my development work, I often encounter situations where it is necessary to determine whether a function is a JavaScript native function, and it is sometimes a necessity to know if the function is provided by the browser itself or by a third party,

The examples in this article describe the methods that functions in JavaScript invoke as arguments. Share to everyone for your reference. The specific analysis is as follows: First look at the example: function Map () { var obj =

This article introduces in detail the various function calls in JavaScript and its principle, which is helpful to understand the function of JavaScript. JavaScript, 5 ways to call a function Again and again, I've found that the bug-coded

For Instanceof and typeof, formerly used occasionally, especially typeof used more, today, the study of ext source, many places are used to instanceof, suddenly feel that they are similar but also should have their differences, online read some

Introduced In the software system, sometimes faced with the creation of "a complex object", it is usually composed of the child objects of each part by a certain algorithm; Because of the change of requirements, the various parts of this complex

Before you do something, be clear about the benefits of doing it, and believe that no one is willing to do things for no reason at all. Generally speaking, when we are designing a class, in fact, you want to reduce the repetition of the code, the

The following table is described in the previous blog, and the list is the simplest structure, but if you want to deal with some of the more complex structures, the list is too primitive, so we need some kind of similar but more complex data

Structure and Content Properties NodeType All nodes have a type, and there are 12 different types of nodes in total. Copy Code code as follows: Interface Node { NodeType Const unsigned short element_node = 1; Const unsigned short

The example in this article describes the way the JavaScript implementation check box exceeds the limit, which is the pop-up warning box. Share to everyone for your reference. The implementation methods are as follows: javascript

When it comes to the class inheritance of JavaScript, the prototype chain is inevitable, but the inheritance through the prototype chain has many defects. Problems with no parameter class inheritance Let's take a look at a sample code to realize B

The example in this article describes how JavaScript exports Web page content to Word and Excel. Share to everyone for your reference. The implementation method is as follows: web page Export to Excel document cell a cell a cell a

The example in this article describes the way JavaScript limits the size of a picture display. Share to everyone for your reference. The implementation methods are as follows: /** * Limits the size of the picture display. * * @param thisobj

What is DOM? 1. Introduction Document Object model, called DOM, is a standard programming interface recommended by the Consortium for processing extensible flag languages. The history of Document Object model dates back to the "browser wars"

Through arrays, expanding string stitching can lead to performance problems Copy Code code as follows: function StringBuffer () { this.__strings__ = new Array (); } StringBuffer.prototype.append = function (str) {

Recently work content slowly close to my idealized (Web front-end), so pay more attention to the front-end performance! Background colleagues introduce the use of Ajax template engine, improve rendering speed! Here are a few JavaScript template

The code is very simple, the implementation of the function is very practical, directly to the code Css: Copy Code code as follows: pull to Refresh Html: Copy Code code as follows: 1 2 3 4 5 6 7 8 9