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number:   upletter:     for this code ,how could i change it  in the first input button ,can only enter 5 numbers  in the 2nd ,can only enter 7 loewrcase letters   in the third ,can only enter 8 upper case letters . others cant be enter in the input button

number:   upletter:     for this code ,how could i change it  in the first input button ,can only enter 5 numbers  in the 2nd ,can only enter 7 loewrcase letters   in the third ,can only enter 8 upper case letters . others cant be enter in the input button

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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<!DOCTYPE html>
<html lang="en">
<head>

</head>
<form action="form_action.asp" method="get">
number: <input type="number" name="fname" />

<input type="submit" value="Submit" />
<input type="text" οnkeyup="this.value=this.value.replace(/[^a-z]/g,'')">  
<input type="submit" value="Submit" />
upletter: <input type="text" style="text-transform:uppercase" name="lname" />
<input type="submit" value="Submit" />
</form>

</body>
</html>

 

 

for this code ,how could i change it 

in the first input button ,can only enter 5 numbers 

in the 2nd ,can only enter 7 loewrcase letters 

 in the third ,can only enter 8 upper case letters .

others cant be enter in the input button

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