Regular expression in javascript to check time with date

Question

I need to check whether the text contains a date part with it.

for ex: mytext_12/26/2011_11:51_AM or someText_12/26/2011_13:51_PM have a date part it returns true.

I am not too good with expressions so looking for one. the format of the date - time part is fixed.

i got a way out for it but failing for time .

var containsDate = ~str.search(/\d{1,2}\/\d{1,2}\/\d{4}/);

it checks the date part perfectly but when i am trying for the time part i am messing it up some where .

_\d{1,2}:\d{2}_(?:AM|PM) this is the part for time but i am not able to generate the final regex by combining this two.

in 7th grade shop class, I learned this rule: "Never use a tool that you don't know how to use." — J. Holmes
– J. Holmes, Commented Dec 29, 2011 at 14:05

rahool · Accepted Answer · 2011-12-29 11:11:28Z

1

Try,

.search(/[0-9]{2}\/[0-9]{2}\/[0-9]{4}_[0-9]{2}:[0-9]{2}_(AM|PM)/)

A good resource for regex, MDN:Regular Expressions

answered Dec 29, 2011 at 11:11

rahool

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1 Comment

ankur Over a year ago

it is not working for this string which is valid " Annual_12/7/2011_3:56_PM" and for a invalid string you can check for this one "Annual_12/7/2011_234234".

rahool · Accepted Answer · 2011-12-29 13:56:59Z

0

Try,

.search(/\d+\/\d+\/\d{4}_\d+:\d+_(AM|PM)/)

answered Dec 29, 2011 at 13:56

rahool

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