Javascript regex to validate users profile name [duplicate]

Question

How can I validate a name in Javascript using Regex? I tried with /^([a-zA-Z.]){3,50}$/ this validation expression but it does not completely satisfy my needs.

Valid Names can be (Total Length between 3 and 50)

John
Antony Simon
Kevin M D
James.K

Invalid names can be

121212
aaa12212
3434fgfgf
James..
James .

Please help.

stackoverflow.com/questions/16839024/javascript-name-validation — Matthew Lock
– Matthew Lock, Commented May 29, 2014 at 5:32

Abhinab Kanrar · Accepted Answer · 2014-05-29 05:33:27Z

2

First try to decide what will be your validation criteria one by one.....
1.Is it just to check string length Length between 3 and 50
2.Is it just to check string length Length between 3 and 50 and just contain characters
3.Is it just to check string length Length between 3 and 50 and just contain characters '.' sysmbol etc
Without deciding your proper scenario you can't build a regex

answered May 29, 2014 at 5:33

Abhinab Kanrar

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Comments

Oleg Gryb · Accepted Answer · 2014-05-29 05:39:05Z

1

Try this one:

/^([a-zA-Z. ]){2,49}[a-zA-Z]$/

edited May 29, 2014 at 5:39

answered May 29, 2014 at 5:33

Oleg Gryb

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1 Comment

zx81 Over a year ago

+1, but you don't need capturing parentheses.

razahassank · Accepted Answer · 2014-05-29 05:41:14Z

0

Try this it should work ..

var str = "James..";
var regx =  /^(([a-zA-Z](\s|\.)?)*){3,50}$/;
regx.test(str);

answered May 29, 2014 at 5:41

razahassank

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