CODEWITHSUNDEEP
javascriptregexinternet-explorer-8
Waqleh
Waqleh

Reputation: 10161

regular expression issue in internet explorer 8

I am trying to do the following in the console of IE8 

new RegExp(/(^(([+]?((([0-9\u0660-\u0669]+)([\,\.\-]?[\s]?))+))+){4,255}$)|(^[]{0,255}$)/).test('1234')

and I am getting the following error "Expected ']' in regular expression" but whenever I try this on Firefox it returns true with no errors what so ever.

I am unable to figure where in the regular expression, the problem lies. Any help would be much appreciated.

Upvotes: 0

Views: 1380

Answers (2)

SWilk
SWilk

Reputation: 3446

Why not using (^$) to match the empty string?

new RegExp(/(^(([+]?((([0-9\u0660-\u0669]+)([\,\.\-]?[\s]?))+))+){4,255}$)|(^$)/).test('')
//true
new RegExp(/(^(([+]?((([0-9\u0660-\u0669]+)([\,\.\-]?[\s]?))+))+){4,255}$)|(^$)/).test('1234')
//true
new RegExp(/(^(([+]?((([0-9\u0660-\u0669]+)([\,\.\-]?[\s]?))+))+){4,255}$)|(^$)/).test('abc')
//false

That is, unless you need to match from 0 to 255 spaces along with the number part.

Upvotes: 3

james emanon
james emanon

Reputation: 11807

new RegExp(/(^(([+]?((([0-9\u0660-\u0669]+)([\,\.\-]?[\s]?))+))+){4,255}$)|(^[ ]{0,255}$)/).test('1234')

Put a space between [ ] at: (^[ ]{0,255}$)/)

Upvotes: 2

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