variable

First, Introduction Asynchronous Javascript+xml, or Ajax, is a Web development technology that creates interactive Web applications. This program uses JavaScript and XML to submit server requests from the client, and it only needs to exchange a

First look at the relatively simple-send a simple query string that contains a well-known/value pair to the server, in which case XHP can use Get or post. Getfunction Dorequestusingget () {Createxmlhttprequest ();var querystring =

first, the introduction One of the most widely used features in the Web world is search. With the development of web technology, in order to better meet customer demand, the regular search engine began to more unconventional way "open the door." In

Dhtml| Program | Underneath the slides, I'm going to start with the most central part of writing JavaScript programs. Our idea is that you can define a set of pictures (several), when the page appears first picture, and preload the second picture,

Article Introduction: stop using a lot of sass variables. Using sass, write code like this: color: $body-text-color; padding: $sidebar-padding; But I do not like this, I now like to use SASS in the following way to write: color:

Article Introduction: Most of the front-end ER did not follow a good CSS writing code to write CSS, this will affect the reading experience of the code, here I summarize a CSS writing specifications, CSS writing order for everyone's reference, these

Article Introduction: CSS Center Encyclopedia I see the recent micro-blog Popular CSS Center technology, foreigners code to write related articles, a race a long ah, I summed up a few summed up, is a note.Once said: "Anise beans back to

1.[js compression]uglifyjs Source.js-mc-o target.min.js To compress Angular.js as an example, can compress local variable name, remove useless local variable, blank character, etc., compression ratio is close to 80%, the efficiency is

Article Introduction: In fact, the current SASS has two sets of grammatical rules: one is still using indentation as a delimiter to distinguish between blocks of code, and another set of rules and CSS like the use of braces ({}) as delimiters. The

Article Introduction: In order to improve the efficiency of teamwork, it is convenient for the backstage staff to add the function and the late-stage optimization maintenance, the output high-quality documents. Once the specification document is

Article Introduction: The only thing that you really need to learn with CSS preprocessor is the syntax, Sass is written in Ruby, but the syntax of both is not related. Do not know Ruby, still can use. All you need is an application like Cudekit to

Article Introduction: what are the common block-level elements and inline elements in CSS? According to the CSS specification, each page element has a display property that determines the type of the element, and each element has a

Block Elements * address-addresses * blockquote-block References * Center-lift to Zi * Dir-directory list * div-often Block-level easy, but also the main label of CSS layout * DL-definition list * Fieldset-form control group *

Ways to define functions There are three main ways to define a function: Functions Declaration (Function Declaration)Functional expression function Expression)New function constructor Among them, function declarations and function expressions are

The problem of copying objects is often encountered in the actual situation. For example, when you are working on a multiple structured data store or call in a project, you will be manipulating objects (JSON), and different operations are defined

Speaking of operators, basically all kinds of programming languages will be involved, the use of similar methods. Here's a simple collation of JavaScript here today. In general, operators are still relatively much more, can be divided into the

Template Method Mode description Definition: Defines the skeleton of the method operation, extends some concrete implementations into subclasses, and uses specific implementations that do not affect the skeleton's behavioral steps! Description: A

JavaScript scopes are the accessible scope of variables and functions. 1. Variable Scope In JavaScript, variable scopes are divided into global scope and local scope. Global scope You can define a variable with global scope Anywhere 1.

at the time of project development, the scope of global scope and Directive local scope is not clear enough, global scope and Directive local scope communication is not well grasped, here is the global scope and Directive the use of local scope to

Let's start with how callbacks is used: the first example function A () {} Function B () {} var cb = $. Callbacks (); Cb.add (a); Cb.add (b); Cb.fire (); //You will execute the a method first and then execute the B method The above probably