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The form is:
var p1=new Reg ("E");d Ocument.write (Reg.test ("Welcome to china!"));var p1=new Reg ("E");d Ocument.write (Reg.exec ("Welcome to china!"));var p1=new Reg ("E");d Ocument.write (Reg.compile ("Welcome to china!"));
N Match whatever contains 0 or one n strings.
N{x} matches a string that includes a sequence of X N.
N{x,y} matches a string that includes a sequence of X or Y N.
N{x,} matches a string that includes at least X N of the sequence.
n$ matches whatever string ends with N.
^n matches whichever string begins with N.
? =n matches whatever string followed by the specified string n.
?! n matches whatever is not followed by a string with the string n specified immediately thereafter.
"Exercise 1" infers if the input ID is in the correct format
<body><label> Enter your ID number: </label><input name= "" type= "text" id= "Shenfen"/><input name= "" Type= "Submit" id= "Textfi" value= "Submit 1" onclick= "Test ()"/><!--commit button, trigger function--></body>
：
"Exercise 2" infers that the mailbox you entered is correctly formatted<body><label> Please enter your e-mail: </label><input name= "" type= "text" id= "Youxiang"/><input name= "" Type= "Submit" value= "Commit 2" onclick= "Y ()"/></body>
：
Relatively speaking. JS is a very important point in the form of the expression. Very many places need to cooperate with the regular, so the small partners must learn this piece of content.Source of references:
Extended Reading
Js-Regular form
Http://www.lai18.com/content/351738.htmlJavaScript is the form of a series of technical articles to organize the collection
1 A good example of the regular form-learning regularization used in the Forum's repost tool
The Replace method of 2JS and the application explanation of the combination of the normal form
3javascript Replace method and normal form
4 Regular table inference whether there are Chinese and full-width characters and inferences including Chinese string lengths
5trim prototype function to see the performance of JS-normal form
6 Dynamic Creation/addition of CSS style script compatible with IE Firefox
7javascript gets the regular form within the first slash in the address of the link file
8Mootools 1.2 Tutorials the right form
Realization method of using array cache to implement the form in 9javascript
10JavaScript Learning Notes (14) Regular form
11javascript Normal-form trigger function for advanced substitution
12 matching arbitrary characters with the regular form notation
13javascript normal form (i)
14js Various validation text box input format (normal form)
The role of the parameter G (global) in the 15javascript normal form
16js Replace function function. Use the regular form to solve all the substitutions of JS
17 Regular Summary: regular form in JavaScript
18javascript Learning Notes (v) Regular form
Global matching pattern analysis of 19Javascript in the universal form
20PHP matches consecutive numbers or letters in regular form
Description of the regular form in 21jquery
22 Frequently used JavaScript expressions
23JavaScript the difference of the browser of the normal form
24jQuery Source Code Analysis-02 regular form REGEXP regular expressions are used
25javascript Advanced article 1 regular form, cookie management, UserData
26 getting the data from the server use JS to go to the normal form of the space
27js Normal Table type
28javascript Learning Notes (11) Introduction to the regular form
29js inferred number \ letter \ Chinese normal form (instance)
30js Limit text box can only enter a number (normal form)
31Java Regular Form Learning summary and some sample examples
32JavaScript Advanced Programming (3rd Edition) Learning Note js Normal form
The 33javascript is an introduction to the relevant table
34 Useful JS Regular form (mobile phone number/IP regular/ZIP code/Phone, etc.)
35JS Replace regularization application case explanation
36 Regular table with JS easy to handle JSON text convenient and old ancient
3,730-minute introductory basic tutorial on Getting Started
38 How to format XML content by using JavaScript as a form of expression
Specific explanations for the use of the 39JS regular form
40Jquery Validate Useful Validation code Daquan
41jquery frequently used to see the form of the expression
42jquery MACTH Case
43jQuery regular form of use
44JQuery Digital type validation normal form
Summary of the regular form of the 45jQuery time format of Lieutenant Colonel
46js writing trim () function and the use of regular form
47JS frequently use regular table to summarize
48js implementing method of turning a string into a regular table
49JS Regular Table-type Daquan (collation specific and useful)
50JS Regular table to get the method of grouping content specific explanation
51js validate forms with regular expressions (more complete resources)
52javascipt matching single-line and multiline gaze in the normal form
53 Replace the image address with a regular table img tag
54 frequently used JavaScript validation form summary
55 Summary of several methods of the special symbols and the normal form in the form of the normal expression (Replace,test,search)
The normal form in 56JavaScript
57JS verification phone number and phone support +86 of the regular form
58 using the JS form to verify the mobile phone number, email address, zip code
59JS regular Form-proof digital code
Description of difference of Test,exec,match method in 60js normal form
61 implementing form validation with a regular form to verify that the forms are Chinese
62js Dynamic splicing Two methods of the normal form
63JavaScript implementing form validation phone numbers with a regular form
64JavaScript Forms Verify phone numbers by means of a regular form
Concise summary of the regular form in 65JavaScript
66JS searching and replacing instances of strings using the Replace () method and the regular form
67javascript frequently used regular form examples
68node.js to get a code instance of all links in a Web page
69JavaScript using the regular table to remove the date-
70 Delete the regular form of gaze statements in JavaScript
71JavaScript using the "-" in the regular form of the removal date
72javascript regular/g Reference guide for use with/I and/gi
73JS applying the normal form to convert uppercase and lowercase demo samples
74javascript Learning Notes (eight) regular form
75 a few instances of the regular form in JavaScript
76javascript normal form-test
77 using js+ to add a link to a keyword
78 Regular Expressions in JavaScript applications
79 Complete verification of forms with regular forms and JavaScript
80 example Analysis JS and C # Use a regular table to match a label
81Js Regular Form Knowledge summary
82javascript using a regular form to detect IP addresses
83 formatting and highlighting JSON strings using regular expressions
Use DOM manipulation in 84jQuery instead of regular form
85javascript normal Form search () example of Use method
86javascript a method to replace a phone number with replace ()
87jquery method of verifying an email address using the regular form
88 debugging JavaScript problems encountered in the form of an expression
89javascript using the normal form to implement the character after removing the space
Guidelines for using the normal form in 90javascript
91Javascript regularization implementation to add thousands separators to numbers
92 "JavaScript" uses the regular form to check if the input box is a URL
93jQuery get the name of the uploaded file in normal form
94 A brief description of the usage of the JavaScript in the form of expressions
The ignorecase attribute in the 95JavaScript normal expression uses the specific explanation
96 specifically explains the use of the global attribute in JavaScript's normal form
97 using the Exec () method in the regular form of JavaScript
98 Brief Introduction to the use of the test () method in the regular form of JavaScript
Application of the multiline attribute of the 99JavaScript normal form
JavaScript is a form of knowledge aggregation
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