JavaScript

The following js Code executes the braces no matter whether the if condition returns true or false. It turns out that if condition parentheses are followed by semicolons, causing a crash. The Code is as follows: If ($ ("span", $ ("# txtStere").

There is a classic book called design patterns, which talks about 21 classic design patterns. We suggest you take a look. 1. Single responsibility For a class, there should be only one reason for its change.If a class has too many responsibilities,

Both java, c ++, and php have equal operators and equal operators. Of course, except ripts, The = Operator and = operator are used to check whether the two values are equal, they use two different definitions with the same characteristics. Both

Determine the double exclamation mark in js. I checked some information on the Internet. He is equivalent to a ternary operator and returns a boolean value. Today, I read the qunit source code and found a strange piece of code. Although I can

To determine whether a set Contains an element, we can use the js prototype extension to encapsulate our own Contains method. The specific ideas and implementation are as follows, if you are interested, you can refer to the C # syntax to determine

Window is used. onresize, but it is found that the status on the page is always incorrect after each onresize event. Let's share with you the solution to the onresize event multiple times before doing an extension, you must ensure that the page is

This article introduces the example code of native JavaScript code that can be dragged to the pop-up window. If you need it, you can refer to this Code. It is not my original code, but recently I want to learn how to create a very beautiful pop-up

You may have seen the accordion effect navigation and there are many implementation methods. In this article, we will introduce you to the simple implementation of native js, if you are interested, do not miss out on the following: Html code The

Jqueyr determines the sample code of the checkbox group. For more information, see html: The Code is as follows: Approval Not Approved Jquery: The Code is as follows: $ (Function (){$ (". CheckboxListItem"). change (// instructorFunction (

Several nice JS strings into JSON object instances Example 1In JS, convert a string in json format into a JSON object with key code The Code is as follows: Json = eval ('+ str + ')'); The method is as follows: The Code is as follows: JSON

When we were a beginner in JavaScript, we visited this more or less, but we were always confused about the timing and often passed it. In fact, this is always there. We need to remember one sentence: this always points to the object where the

You may have seen the effect of the slide picture. Here is a good example. If you are interested, refer to section 1 and add the following elements on the page. Displays the output and output image file list. The Code is as follows: Image name

The trigger order of true is always before false; if multiple are true, the trigger of the outer layer prevails over the inner layer; if multiple are false, the trigger of the inner layer prevails over the outer layer. Example If

In this example, When you click any position on the page, "a" will pop up. The document is based on the html tag, and is the most powerful. The following example uses the document Feature when you click "a" at any position on the page. The Code is

Check the effect of a large image. You may have seen it when you browse the Web page. In fact, it is very easy to implement. The following is a good example. If you like it, you can refer to it. The Code is as follows: /* View the big image */Var

The browser has its own mouse style. What should I do if I want to keep the mouse style uniform or specify a specific mouse style? You need to use a custom image. The following is a good example. For more information, see the mouse style in the

Sample Code for jquery to submit data by press Enter. It is a simple method. You can see that it is very easy for jquery to submit data by press Enter, we only need to check whether the user presses the carriage return to bind the event directly.

The reason why "returnfalse" is misused is that it seems to have completed the work we handed over to it. The browser will not redirect us to the link in href, and the form will not be submitted, but what is wrong with this? Maybe when you first

In some cases, this function is required: use JavaScript to implement automatic circular scrolling of text or images inside the div. Next, we will introduce the implementation method in detail. If you are interested, refer The Code is as follows:

This article will introduce the simple and efficient method of writing a JSON queryer using a function template. If you need it, you can refer to JSON as the highlights of JavaScript, it can use elegant and concise code to initialize objects and