match pattern in javascript

Question

How can i match a expression in which first three characters are alphabets followed by a "-" and than 2 alphabets.

For eg. ABC-XY

Thanks in advance.

That very sentence pretty much spells out the answer for you.... if you know regexes at all. — mpen
– mpen, Commented Nov 19, 2009 at 6:33

Christian C. Salvadó · Accepted Answer · 2009-11-19 06:39:32Z

4

If you want only to test if the string matchs the pattern, use the test method:

function isValid(input) {
 return /^[A-Z]{3}-[A-Z]{2}$/.test(input);
}

isValid("ABC-XY"); // true
isValid("ABCD-XY"); // false

Basically the /^[A-Z]{3}-[A-Z]{2}$/ RegExp looks for:

If you want to match alphanumeric characters, you can use \w instead of [A-Z].

Resources:

answered Nov 19, 2009 at 6:28

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Comments

Amber · Accepted Answer · 2009-11-19 06:24:33Z

1

[A-Z]{3}-[A-Z]{2}

if you also want to allow lowercase, change A-Z to A-Za-z.

answered Nov 19, 2009 at 6:24

Amber

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Asaph · Accepted Answer · 2009-11-19 06:25:01Z

0

/^[a-zA-Z]{3}-[a-zA-Z]{2}$/

answered Nov 19, 2009 at 6:25

Asaph

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YOU · Accepted Answer · 2009-11-19 06:30:06Z

0

/\w{3}-\w{2}/.test("ABC-XY")
true

it will match A-Za-z_ though.

answered Nov 19, 2009 at 6:30

YOU

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