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Re: How to perform an EXACT match for an item without looping through?

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justaguy <lichunshen84@gmail.com> wrote on 17 May 2017 in
comp.lang.javascript: 

> On Wednesday, May 3, 2017 at 9:46:01 AM UTC-4, John G Harris wrote:
>> On Tue, 2 May 2017 18:49:20 -0700 (PDT), justaguy
>> wrote:
>> 
>> >
>> >
>> >The following won't work.  Is it doable without looping through the
>> >list 
> ?
>> >
>> >Thanks.
>> >
>> ><script>
>> >     /* find EXACT match of an item from a list without looping
>> >     in this case, the 2nd item */
>> >
>> >     var list = "2332,123456,9922";
>> >     
>> >     var f = list.match(/12345/g);
>> >     
>> >     if (f.length == 0) {
>> >          console.log('not found');
>> >     }
>> >     else {
>> >     console.log('found');
>> >     }
>> >     
>> >     
>> >     var list = "2332,123456,9922";
>> >     
>> >     var f = list.indexOf('12345');
>> >     
>> >     console.log(f);
>> >     
>> ></script>
>> 
>> Are you able to change the coding, e.g to 
>>   "|2332|123456|9922|" ?
>> Then looking for "|12345|" won't pick up "|123456|".
>> 
>>   John
> 
> Hmm.  There's a bug, that is, if a list item value is not strictly
> numeric data or if alphnumeric then they are also case sensitive
> otherwise such match technique fails.  For instance, if we replace
> "12345" with "123AB45", then it won't match "123ab45", I'd like it to be
> case insensitive.  Can we still use indexOf ?  If so, how? 

Did not follow the thread, 
but in general change the regex

var f = list.match(/123ab45/g);

to 

var f = list.match(/123ab45/ig);



-- 
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

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How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-02 18:49 -0700
  Re: How to perform an EXACT match for an item without looping through? JJ <jj4public@vfemail.net> - 2017-05-03 18:36 +0700
    Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-03 05:58 -0700
      Re: How to perform an EXACT match for an item without looping through? JJ <jj4public@vfemail.net> - 2017-05-04 15:03 +0700
        Re: How to perform an EXACT match for an item without looping through? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-05-04 10:57 +0200
        Re: How to perform an EXACT match for an item without looping through? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-05 18:40 +0200
      Re: How to perform an EXACT match for an item without looping through? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-05 19:59 +0200
        Re: How to perform an EXACT match for an item without looping through? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-06 02:10 +0200
  Re: How to perform an EXACT match for an item without looping through? John G Harris <niam@jghnorth.org.uk.invalid> - 2017-05-03 14:45 +0100
    Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-03 07:12 -0700
    Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-17 09:58 -0700
      Re: How to perform an EXACT match for an item without looping through? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-05-17 19:34 +0200
        Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-17 11:12 -0700
          Re: How to perform an EXACT match for an item without looping through? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-05-17 20:33 +0200
            Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-17 15:16 -0700
              Re: How to perform an EXACT match for an item without looping through? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-05-18 11:15 +0200
                Re: How to perform an EXACT match for an item without looping through? justaguy <lichunshen84@gmail.com> - 2017-05-19 07:58 -0700

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