time function RegExps

[jwoods7]

Wow, I've started to research RegExps for data verification...not a small topic.

Anyway, my sample script isn't working and I don't know why, can anyone help?

For this one, I'm looking to test whether a string is a time (ie; 11:45 am)

Why does this alert "false"?

function testField(fieldname){
var fieldval
fieldval = "12:36 pm"

var re = new RegExp( fieldval, '^([1-12]))([1-60])$' );

alert(re.test(fieldval))
}

 

[chessbot]

How about

'^[0-9]|[10-2]:[0-5][0-9] [ap]m$'

--Chessbot

"In that blessed region of Four Dimensions, shall we linger on the threshold of the Fifth, and not enter therein? Ah, no! [...] Then, yielding to our intellectual onset, the gates of the Sixth Dimension shall fly open; after that a Seventh, and then an Eighth -- --" Flatland, A. Square (E. A. Abbott)

 

[tsdragon]

The part of your expression [10-2] will not work - it will be treated as "one or zero to two". The character class ([]) only supports SINGLE characters. what you want is:

"^(0?[1-9])|(1[0-2]):[0-5][0-9] [ap]m$"

If the time is required to have a leading zero in the hours, take out the ?

Meddle not in the affairs of dragons,
for you are crunchy, and good with mustard.