How to search for a substring and a regex in a string?

Question

I have to verify if my string contains a substring followed by a regex.

Lets say the string looks like: "Abcd 03:02:01"

How can i verify that the string contains the substring "Abcd" and the regex for "03:02:01". I am using jscript in TC9.

I tried using find for the Substring and checked regex using Test.This involves checking the input string twice in If loops. But is there any other way to do this?

Thanks

/Abcd \d\d:\d\d:\d\d/ (this requires it to be Abcd DIGITDIGIT:DIGITDIGIT:DIGITDIGIT). — h2ooooooo
– h2ooooooo, Commented Apr 25, 2014 at 16:06
Thanks for you response. But how can i use it to search in the input string.The string Abcd keeps changing ,hence cannot really add it in regex — user2993178
– user2993178, Commented Apr 25, 2014 at 16:09
Currently i am checking the input string in two parts. var check=aqString.Find(Inputstring,"Abcd",0) var matches=regex.test(Inputstring) if(check !=1){ if(matches) //do something } — user2993178
– user2993178, Commented Apr 25, 2014 at 16:15

Pedro Lobito · Accepted Answer · 2014-04-25 16:25:46Z

1

If I understood well your question, you want to match the existence of Abcd 03:02:01in a string, based on that, you can use:

var s = "Abcd 03:02:01";
if (/^Abcd \d{2}:\d{2}:\d{2}$/.test(s)) {
    // Successful match
} else {
    // Match attempt failed
}

answered Apr 25, 2014 at 16:25

Pedro Lobito

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Community · Accepted Answer · 2017-05-23 11:49:25Z

0

You can use variables in a regex expression.

var str = "Abcd 03:02:01";
var beginning = "Abcd"; 
var pattern= RegExp(beginning + " \\d\\d:\\d\\d\\:\\d\\d"); 
var result = pattern .test(str); //bool return

edited May 23, 2017 at 11:49

CommunityBot

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answered Apr 25, 2014 at 16:10

tyh

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