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Input number, letter and Chinese Character restriction method (post)

Source: Internet
Author: User
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Only Chinese characters can be entered

<Input onkeyup = "value = value. replace (/[^ \ u4e00-\ u9fa5]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ u4e00-\ u9fa5]/g, '')">

Only the full width can be entered.
<Input onkeyup = "value = value. replace (/[^ \ uff00-\ Uffff]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ uff00-\ Uffff]/g, '')">

Only numbers can be entered
<Input onkeyup = "value = value. replace (/[^ \ D]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ D]/g, '')">


Only English and numbers can be entered.
<Input onkeyup = "value = value. replace (/[\ W]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ D]/g, '')">


Default display
<Input name = "username" type = "text" id = "username" onfocus = "this. value = '';" value = "user name, mobile phone" class = "input" size = "14">

Input number, letter and Chinese Character restriction method (post)

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Related Keywords:
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