JS Built-in object Learning notes _javascript Tips

Mark's related knowledge points: First, what is JS's built-in object, what does it include? (The following content is transferred from the integration of resources on the Internet) (W3shool JS manual address: http://www.jb51.net/w3school/js/js_refere

Each of the jquery uses return TRUE or false instead of break or continue_jquery

Copy Code code as follows: function MethodOne () { .... $.each (Array,function () { if (condition set) { return true; } }); .... } In a function, there is a each, and in each case a condition is set, the function retu

A brief analysis of the HTML (), text (), Val () difference in jquery (_jquery)

1.HTML HTML (): Gets the HTML content of the first matching element. This function is not available for XML documents. But can be used for XHTML documents HTML (val): Sets the HTML content for each matching element. This function is not available f

jquery through the control node implementation only in the foreground through the Get method to complete the parameter pass _jquery

This example describes jquery through the control node implementation only in the foreground through the Get method to complete the parameter pass. Share to everyone for your reference. The specific analysis is as follows: This is also the content o

JS upload images before the restrictions include (jpg jpg gif and size width) and other _javascript skills

function: 1. Limit extension: jpg only | | JPG and GIF 2. Limit picture size: K is the unit 3. Limit picture width High: PX as unit (either have, or none) 4. Limit damaged pictures (no preview pictures) 5. Limit the pictures that have changed the ext

Jqurey validation Form verification using the detailed _jquery

is a good plug-in, it can verify the client form, and provides a number of customizable properties and methods, good scalability. This article is to understand the application of validation by explaining this example. The validation that is involv

Set Homepage Favorites compatible with 360/Firefox/Google/ie and other mainstream browser code _javascript tips

No need to find, I tried many times, ie, Firefox, Google browser This code is irreversible compatibility. Here's my simple solution. The way to solve this problem completely is to create an action step help page that adds the homepage as well as othe

jquery implementation freezes table rows and columns _jquery

Customer requirements for the first few rows of table data or the first few columns to freeze, that is, when scrolling to keep these rows/columns do not move, through the Internet to find code, reference to the idea of existing code, to achieve any r

jquery Gets the regular expression of the name of the uploaded file _jquery

Method One: $ (' input[type= ' file '] '). On (' Change ', function () { var reg =/[^\\\/]*[\\\/]+/g;//Match the name and suffix of the file var name = $ (this). Val (). replace (Reg, ' "); var postfix =/\. [^\.] +/.exec (na

Use JS to get uploaded file name is purely to beautify and use _javascript skills

Why to use JS to get uploaded file name? In fact, purely to beautify, friendly, However, it is not the same as the Internet, using path.substring (Path.lastindexof ('/') +1); There are a lot of problems in this kind of work. For example, the valu

The distinction between naming and variables as object attributes when declaring variables _javascript tips

The title is a mouthful, JavaScript. The rules followed by named variables 1. The first character must be a letter, Chinese character, underscore (_) or dollar sign ($) 2, the rest can be underlined, Chinese characters, dollar sign and any letter,

Basic usage of JS array and array removing elements based on subscript (numeric or character) _javascript tips

1. Create an array Copy Code code as follows: var array = new Array (); var array = new Array (size);//Specify the length of the array var array = new Array (item1,item2......itemn);//Create an array and assign a value 2,

Format decimal to retain two-bit _javascript tips after a decimal point

In the development process, you often encounter formatting to adjust decimals, such as two digits after the decimal point, and so on. Methods are also quite common, as is the memo below. The first, using Math.Round var original=28.453 1)//round "or

JS use array length property to empty and truncate an array of small examples _javascript tips

1. Empty the array with length: Copy Code code as follows: <script> var arr1 = [' aaa ', ' bbbb ', ' http://www.jb51.net ']; alert (ARR1); arr1.length = 0; alert (ARR1); Array is empty </script> 2. Use length truncate

JS Delete usage (delete object attributes and variables) _javascript tips

1, Object properties deleted function Fun () { this.name = ' mm '; } var obj = new Fun (); Console.log (obj.name);//mm delete obj.name; Console.log (Obj.name); Undefined 2, variable deletion var name = ' Lily '; Delete name; Consol

The common operation of JS array and the conversion of array and string examples _javascript skills

This paper illustrates the common operation of JS array and the method of mutual transformation between array and string. Share to everyone for your reference, specific as follows: The transformation of array and string <script type= "Tex

JS gets the last days of the month, the maximum days and the number of days of the week _javascript skills

The example of this article is about how to get the last days of month, the maximum days and the number of days. Share to everyone for your reference, specific as follows: <html xmlns= "http://www.w3.org/1999/xhtml" > <head> <t

Example details JSON data format and JSON format data field string conversion _javascript tips

JSON (JavaScript Object notation) is a lightweight data interchange format. JSON uses a completely language-independent text format that makes JSON an ideal data exchange language. Easy for people to read and write, but also easy to machine parsing a

Talk about the mutual conversion between JSON objects and strings json.stringify (obj) and Json.parse (string) _javascript techniques

Advanced browsers such as FIREFOX,CHROME,OPERA,SAFARI,IE9,IE8 can directly use the stringify () and Parse () methods of the JSON object. Json.stringify (obj) converts JSON to a string. Json.parse (String) converts a string to JSON format; va

2016 's hottest 15 code syntax highlighting tool to beautify your code _javascript tips

Objective: Code highlighting is useful, especially when you need to display your own code in a Web site or blog, or when you are viewing or debugging a grammar error. We can highlight the code so that the reader can easily read the code block and in

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