JavaScript

We usually sort the random cards from small to large in order (I remember I couldn't catch either of them when I was a child ), this article aims to familiarize yourself with the sorting array and other related knowledge in js by implementing this

You will be engaged in Web Front-end work first and have an understanding of the industry you will be engaged in. Web Front-end development history: The first web page was born in the early 1990s S. The early web pages, except for some small

When the project is started, an exception is reported, which does not affect the running but is annoying. After jsonplugin is added and started, the error javalangNoSuchFieldException: DEFAULT_PARAMatjavalangClassgetField (Classjava: 1537) will be

AngularJS is good. yeoman is a recommended development tool. The installation steps on the Internet are annoying. Here are simple steps. 1. Install Ruby and download the latest installation package: http: rubyinstallerorgdownloads. Select 193.

In the main file, call the following code to create a handle scope (on the stack) HandleScopehandle_scope; create a New context object PersistentcontextContext: New (); enter the context created in the previous step Call the following code in the

The learning of JavaScript was first followed by teacher Niu Yu. His video was simple, and he learned it smoothly. Next, he learned it with Teacher Jiang Hao, I thought that I had to lay the foundation for learning from Niu Yu. Here I should have

Left (string, indicating the & amp; 20540; of left in html) usage: 1. alert (documentgetElementById (& 039; divid & 039;) styleleft) if no value is set, the system returns NULL 2, documentgetElementById (& 039; divid & 039;) styleleft & 039; 100 p

As mentioned above, the tokenize method splits selector into multiple selector logical units (for example, diva is two logical units) and assigns corresponding filter functions to the segments. For (typeinExprfilter) {if (m As mentioned above, the

A json data string, and then use the eval () function in JavaScript scripts. A json data-type token string. Then, you can directly access the JSON object by using the eval () function in the JavaScript script. It is more convenient and flexible.

The principle of the Scope chain is similar to that of the prototype chain. If this variable does not exist in its own Scope, it will look for the parent Scope chain (Scope Chains) A scope chain is a list of objects that are searched for

In ECMAScript, a function is the first class object. This term means that the function can be used as a parameter by the closure (Closures) In ECMAScript, a function is the first class object. This term means that the function can be passed as a

The highlight function highlights the text in the specified area on the page, that is, the background color. Search The highlight function highlights the text in the specified area on the page, that is, the background color. This function is often

The W3C team's head was kicked off until javascript1.8.1 supported the trim function. The W3C team's head was kicked off until javascript1.8.1 supported the trim function (with trimLeft and trimRight). Unfortunately, only firefox3.5 supported it now.

After studying javascript in depth recently, some individuals will: Object-oriented programming is efficient and flexible. After studying javascript in depth recently, some individuals will: Object-oriented programming is efficient and flexible, and

Sometimes we need to calculate the number of days or hours in two days. The following uses JavaScript Sometimes we need to calculate the number of days or hours in two days. Next we will use JavaScript to achieve this requirement, and then we will

Each language has a special feature. For JavaScript, using var can declare arbitrary Each language has a special place. For JavaScript, using var can declare any type of variables. This script language looks very simple, however, to write elegant

The logic of equality and inequality is relatively simple, and today we want to focus on the second operator that we usually use more. The following code is provided: if (![] == []) { //Code} ! [] = [], True or false? We all know that

JavaScript can simulate the typing effect. A very creative little script can be used as a 404 page. Of course, it can also be used in many places. First, save the string to be printed to an array in advance, and then use the setTimeout () method to

You can use parseInt () to obtain a value from a string. This method accepts another base parameter You can use parseInt () to obtain a value from a string. This method accepts another base parameter, which is often omitted, but should not. A

In actual use, the closure can create a very elegant design that allows multiple computations defined on funarg. In actual use, the closure can create a very elegant design that allows you to customize multiple computing methods defined on funarg.