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
I haven't been reading Rhino books lately, the translation of the special rotten and good mouth, especially the prototype that said the mess, and then introduced by colleagues, bought this JS Advanced program design, and then continue to look at the
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 =
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
This example describes the method for JavaScript query string parameters. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
/* Parse query string Returns an object that contains
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
No technical content, just used to practice code logic. For the clarity of the code structure, I write the logic control part in the global variable, the user interface operation is encapsulated in the UI object, presumably. For reference only. At
First, the opening analysis
Hi, everyone! The first two articles we mainly described the "jquery way how to develop Plug-ins", as well as the process design and object-oriented design approach is how to design a plug-in, the two ways each have
To provide a fresh, chic user experience, many sites use JavaScript to improve design, validate forms, check browsers, and AJAX requests, cookie operations, and so on, to achieve no refreshing dynamic effects. However, to make a lot of content in
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"
This example describes how JavaScript calculates dates within two date and time periods. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
/*************************
* Calculate
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
Objective:
Projects often use the need to upload files, photos and other features, but also need to limit the size of uploaded files. Many plug-ins will use background request verification, the front-end JS check relatively few. This article
When looking for how to design a JavaScript API, I found the method chaining this thing, the chain of methods, it seems to be very powerful and interesting, and this is what we used to see in the past.
Javascript Method Chaining
On Wikipedia,
This article illustrates how JavaScript implements dynamically adding Li elements to the ol list. Share to everyone for your reference. The specific analysis is as follows:
JavaScript to the OL list of dynamic Add Li element method, the following
The examples in this article describe the way pure JavaScript implements Ping. Share to everyone for your reference. The implementation method is as follows:
function Ping (IP) {var img = new Image ();
var start = new Date (). GetTime ();
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:
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