JS function set overview, js function set1.doc ument. write (""); Output statement2. Comments in JS are //3. the traditional HTML document sequence is: document-> html-> (head, body) 4. the DOM sequence in a browser window is: window-> (navigator, screen, history, location, document)5. Get the name and value of the element in the form: document. getElementById ("
Objective
After the dragon looked up, March entered the third week. Today morning reading articles from @ NET to see the fish authorized to share.
The text starts from here ~
Recently found that there are a lot of JS single-threaded operation mechanism of the article, but found that a lot of information is only a part of the knowledge, and the different places of the statement is not uniform, easy to create confusion.
So prepare to comb this piece of
http://blog.csdn.net/deepwishly/article/details/6670942 AjaxPro.dll Basic Tutorial (foreground call background method, background call foreground method)1. Perform functions in C # code in JavaScript functions:Method One: Indirectly trigger the background code1, first set up a service-side control button named BTN1, double-click into the background will be called or processed content written to Btn1_click;2, write a JS function in the foreground, the
The example of this article describes jquery and JS to implement dynamic loading JS file method. Share to everyone for your reference, specific as follows:
Problem:
If you load the script tag directly with jquery append, you will get an error. In addition to document.write, there are other better ways to dynamically load JS files.
Workaround:
1. jquery method
function definition statement
function Demo2 () {
Eval (s);
}
Demo2 ();
Alert (test ()); ->error:test is not defined
This is because the test function is defined in the local space and can be accessed within the DEMO2 function and is inaccessible outside.
Sharing: Using JS eval to parse the points of attention in JSONThere are generally two ways to parse a JSON string into a JSON data format in
Load the js dependency module according to the configuration file, and configure the file js dependency
Requirements:
According to the following configuration fileCopy codeThe Code is as follows:Module = [{'Name': 'jquery ', 'src':'/js/lib/jquery-1.8.3.js '},{'Name': 'swfobobject', 'src': '/
Simple getting started with Node. js in Windows, and getting started with node. js
Recently, Paypal and Netflix announced the migration to Node. js, the server-side Javascript platform has proved its value in the enterprise field. this is a small step for Node and a huge leap for Javascript! From. NET, Java, PHP, Ruby on Rails and programmers in more technical fi
Detailed description of LABJS dynamic loading of js files on demand, detailed description of labjs dynamic js
LABjs is a small JavaScript tool used to load JavaScript files as needed. Using this tool can improve page performance and avoid loading unnecessary JavaScript files, you can dynamically and concurrently load script files and manage the execution sequence of loaded script files.
Simple Example
$LAB.
My 2nd week with node. JS-node. JS Bottom Book last time: "My first week with node. JS-node. JS style features." This time I read some things about the underlying implementation:
Depth 3rd asynchronous I/O-How does node. JS implement asynchronous I/O
Udemy "Lear
Tagged with: GPO href = = Val tde blog meaning mit ack1. Function of return in JS event handler-answercard-Blog Park. HTML (https://www.cnblogs.com/answercard/p/5255230.html)2, the content of the website to save:The return in this includes some knowledge of the details:For example: The difference between onclick= ' return Add_onclick () ' and onclick= ' Add_onclick () 'When JavaScript calls a function in an event, the return value is actually set to W
When I wrote the front-end HTML page of the Windows application yesterday, I found a strange problem, a simple JS code, actually executed the error.function Replacesymbol () {var val_exp = $ (' #calc_expression '). Val (); alert (val_exp); Val_exp=val_exp.replace (/(/g, ' (') Replace (/)/g, ') '). Replace (/x/g, ' * '). Replace (/÷/g, '/'); alert (val_exp); $ (' #calc_expression '). Val (val_exp);The code is simple, that is, replacing the special char
Reprint address: http://hi.baidu.com/xxq8210/blog/item/f9d82424d77dad0b4d088dbc.html JS cross-domain access: JS variable scope 2009-09-12 17:14
Each language has the concept of a variable, which is an element used to store information. For example, the following function: 1function Student (Name,age,from)2{3 this.name = name;4 This.age = age;5 This.from = from;6 this. ToString = function ()7 {8 r
Objective
In the actual project development, we often need three-level linkage, such as provincial urban choice, commodity category three classification of choice and so on.
But the internet can not find a complete code, powerful, using a simple three-level linkage menu, mostly just a simple talk about the realization of ideas.
Here's a list of three cascading code that I've encapsulated in my work and used in my project, and I'd like to welcome you to the wrong place.
Simple to use (one lin
Fine read this article, enough for you to optimize a half-day, about the JS optimization methods are mostly out of these three methods.
(Total page size is 155.k, and JS takes up 100.3K)
It's time to optimize the next JS.
About JS optimization of the article has a lot of, mostly technical very strong, like what var
In-depth understanding of JS engine execution mechanism
Why is 1.JS single-threaded? Why is async required? How is a single thread implemented asynchronously?
Event loop in 2.JS (1)
Event loop in 3.JS (2)
4. Talk about SetTimeout
First, keep in mind 2 points:(1)
jquery Dynamic Loading Css,js file method is simple,
Cases
Method 1:
The code is as follows
$.getscript ("Test.js");
Method 2:
The code is as follows
function Loadjs (file) {
var head = $ (' head '). Remove (' #loadscript ');
$ ("
}
Method 3:
The code is as follows
$ ("
Attached below are some JS dynamic loading Js,css file method.
The followin
PrefaceTo remove an element from a list in Java, you can use the Remove method directly.In the JS array does not have the Remove method, but in the JS array has the Splice method can achieve the same effect, in addition, you can also use other ways to achieve this effect.To remove an element from an array using the Splice methodFirst look at how the Splice method is used.GrammarArrayobject.splice (index,how
1, JS inside the event flowThe three phases of the event flow are defined in the DOM2-level event Model: capture phase, target stage, bubbling phase, low version IE (IE8 and below) does not support capture phaseCapture Event Flow: Netscape the event stream, that is, the event is received by the page element, descending, and propagated to the most specific element.Bubbling event Flow: The event stream proposed by IE, that is, the event is received by t
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