CODEWITHSUNDEEP
javascriptregex
JuanFernandoz
JuanFernandoz

Reputation: 799

How find substring after substring or between two substrings

I have this string:

string with two substrings: 

srt=60389052 - OLGA YANETH PARRA PINILLA8390507 - VICENTE ARROYAVE ARANGO

So, I Know how found the first substring (digit + words) and the second:

w1 = srt.match (/^\d+\D+)/);  //matches =  60389052 - OLGA YANETH PARRA PINILLA


w2 = srt.match (/\d+\D+$/);   //matches = 8390507 - VICENTE ARROYAVE ARANGO

that's fine but if the string are more longer I have problems to match the second substring, for example:

string with three substrings: 

srt=60389052 - OLGA YANETH PARRA PINILLA8390507 - VICENTE ARROYAVE ARANGO777777 GERMAN CASTRO

I want to find this:

8390507 - VICENTE ARROYAVE ARANGO

The string sometimes have only two substrings and sometims have three so I have to find always the second one no matter if the string have 2 or 3 substrings, I mean If I use the w2 in the larger string don't match the substring that I want because would find the last substring into three but not the second one.

Upvotes: 1

Views: 160

Answers (3)

ZER0
ZER0

Reputation: 25322

You can simply use the global flag:

console.log(srt.match(/\d+\D+/g))

Upvotes: 0

VisioN
VisioN

Reputation: 145378

Do global match and get the substring that you need by index (starting from 0):

var matches = str.match(/\d+\D+/g);
console.log(matches[1]);  // "8390507 - VICENTE ARROYAVE ARANGO"

Upvotes: 3

d'alar'cop
d'alar'cop

Reputation: 2365

I know the regex is not the most elegant, but since Javascript doesn't support lookbehind, this might not be so bad:

str.match(/^\d+\D+\d+\D+/)[0].replace(/^\d+\D+/,'');

Also, if you aren't intent on 'match()' - this also is nicer than above:

str.replace(/\d+\D+(\d+\D+).*/,'$1');

Cheers.

Upvotes: 1

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