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Javascript textarea limit

Source: Internet
Author: User
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This is a good idea to read the maxlength attribute value of textarea for computation, but it is troublesome to modify it, but it is a good reference for js fans, control by reading attribute values.
<! Doctype html public "-// W3C // dtd html 4.01 // EN" "http://www.w3.org/TR/html4/strict.dtd"> <ptml> <pead> <meta http-equiv = "Content-Type" content = "text/html; charset = GB2312 "/> <title> textarea word limit exercise code reference network by ahuinan </title> </pead> <body> <pre class =" code "rows =" 10 "cols =" 60 "onpropertychange =" TextUtil. notMax (this) "maxlength =" 3 "> </textarea> </body> </ptml>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]
The following code directly calculates the document length.
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ptml xmlns = "http://www.w3.org/1999/xhtml"> <pead runat = "server"> <title> input word limit </title> </pead> <body> </ptml>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]
The following code is applicable to a wide range of applications on the network, with the remaining words prompted.
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ptml xmlns = "http://www.w3.org/1999/xhtml"> <pead> <meta http-equiv =" content-Type "content =" text/html; charset = gb2312 "/> <meta name =" robots "content =" all "/> <title> JavaScript restricts the number of words entered in the textarea input box </title> <style type =" text/ css "> </style> </pead> <body> </ptml>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]
For more code for calculating the string length, refer to this article.
Http://www.jb51.net/article/21343.htm

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