Javascript Regular expression for checking pattern

Question

I am using ng-pattern to check for a regular expression The pattern should contain 3 letters and 2 numbers in a group.

Example G-31SSD or G-EEE43

I am currently using pattern which matches only the second one

 ng-model="newGroup.groupCode" ng-pattern="/^\b[gG][-][a-zA-Z]{3}\d{2}\b$/"

How can I make it to check for both the condition or can I write OR condition for ng-pattern

Avinash Raj · Accepted Answer · 2014-09-29 06:02:34Z

2

Use alternation | with a non-capturing group (?:...)

^[gG]-(?:[a-zA-Z]{3}\d{2}|\d{2}[a-zA-Z]{3})$

Avinash Raj

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answered Sep 29, 2014 at 5:48

walid toumi

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Comments

vks · Accepted Answer · 2014-09-29 05:49:14Z

2

^[gG]-\d{2}[a-zA-Z]{3}$|^[gG]-[a-zA-Z]{3}\d{2}$

or you also use

^[gG]-(?:(?:\d{2}[a-zA-Z]{3})|(?:[a-zA-Z]{3}\d{2}))$

Try this.this will fulfill both the conditions.You just have to use an | operator which will match both types.See demo.

answered Sep 29, 2014 at 5:43

vks

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