JavaScript

This morning, I took the time to write a star rating and shared it with you. Due to the limited level, please note if you have any problems.First, you must prepare a star image. The gray color indicates the default state, and the yellow color

Function:Click "cell selection" and use the direction key to change the selected cell. Press the Enter key or double-click the cell to enter the Editable State during the selection. When the cell loses focus, the modified content is saved.Main

Preface: domestic front-end research is not inferior in some aspects to foreign countries. Although I do not understand this article, I appreciate this spirit of in-depth research! The topic of anti-corialization came from a piece of twitter last

The requestAnimationFrame function is used to write the easing function. I have learned a little about it before, but I still don't think it is very familiar with it. Therefore, I have translated an article from a foreigner to facilitate learning

Copy codeThe Code is as follows: NO. operation title executor Start time end time days 1 edit task title: Aspen! Firefox 2012-07-15 2012-08-15 32 2 edit task title: Aspen! Firefox 2012-07-15 2012-08-15 32 3 edit task title:

Json is used for data interaction in the front and back of the project this time. After this time, I will take a rough look and briefly summarize json.JSON: JavaScript Object Notation (JavaScript Object Notation ).JSON is the syntax for storing and

Because mainstream browsers have different rendering effects on select elements, the display varies in different browsers. The most important thing is that the UI is too rough by default, even if it is beautified by css, it cannot produce beautiful

Quiz1 Does Javascript really need classes? First, let's take a look at some of the features of other Class-oriented object-oriented languages (such as Java.Parent class and subclass The parent class and Subclass are not designed to solve the problem

How to add a mask layer in a browser windowBackground In web, page pop-up window is a common interactive method, which can avoid unnecessary page jumps and improve the layout and interactivity of the interface.However, the browser's native pop-up

What is LazyLoad technology? When there are many pages, opening a page will inevitably lead to interaction with the server with a large amount of data. Especially for high-definition images, it occupies several hundred KB of space. Lazy Load is a

Returns the first occurrence of a substring in a String object.StrObj. indexOf (subString [, startIndex])ParametersStrObjRequired. String object or text.SubStringRequired. The substring to be searched in the String object.StarIndexOptional. This

In Jquery, navigator. userAgent. indexOf is used to determine the browser type and perform some processing. It is recommended that you learn about Jquery and learn about the idea.Main usage: $. browser. ['browser keyword ']Copy codeThe Code is as

It should be noted that here we only summarize the commonly used and relatively simple syntaxes of regular expressions, rather than all syntaxes. In my opinion, I have mastered these commonly used syntaxes, enough for daily applications. Regular

Copy codeThe Code is as follows:Question: A maximum of n straight lines can divide a plane into several parts Number of lines: Inner point: Number of partitions: Rule: ① Most divided parts: number of lines + inner points + 1 ② Inner point =

Example:Copy codeThe Code is as follows:Var tbody = document. createElement ('tbody ');Tbody. innerHTML = ' the innerHTML of tbody in IE is read-only '; // an error is reported in IE. The target object is incorrect. Try jquery's html,Copy codeThe

Access ParametersYou can use process. argv to access the command line parameters. It is an array containing the following content:[NodeBinary, script, arg0, arg1,...]That is to say, the first parameter starts from process. argv [2]. You can traverse

Copy codeThe Code is as follows:(Function ($ ){$. Fn. scrollWait = function (options ){Var ops = $. extend ({}, $. fn. scrollWait. defaults, options );Var opts = $. meta? $. Extend ({}, ops, $ (this). data (): ops;/*** Display position*/Var win = $ (

During iteration, we should also note that the elements in an object or array may be any value-except for the original type value, object, and arrray, this value may also be a method, a DOM object, or a window object. You may have noticed that some

Currently, major shopping websites use this loading method. Today, I found a plug-in for delayed image loading on a website of a netizen. It is very useful. Here I will introduce it.First, we will introduce the principle of delayed loading. We need

Copy codeThe Code is as follows:Function fors (){Obj_a = obj_ B;Obj_ B .attr = obj_a;} Copy codeThe Code is as follows:Function fors (){Obj_ B = {};Obj_ B .attr = obj_ B;} The above are two explicit circular references. Memory leakage occurs in IE.