Javascript get substring with multiple of the same characters

Question

Let's say I have the string:

var post = "[PostContent(postId=123e4567-e89b-12d3-a456-426655440000, postName=My New House, picture=house.jpg, location=San Francisco)]"

What I'm trying to rip out is the UUID from the postId so the new resulting string just has the value:

123e4567-e89b-12d3-a456-426655440000

Thanks for the help!

Update:

Sorry for the incomplete question I've already tried:

var firstvariable = "postId=";
var secondvariable = ", postName=";
string.match(new RegExp(firstvariable + "(.*)" + secondvariable));

and

string.substring(string.lastIndexOf("postId=")+1,string.lastIndexOf(", postName"));

and

var regex = /(.*postId=\s+)(.*)(\s+, postName.*)/;
var newtext = string.replace(regex, "$2");

Please share the code which you have tried.

Hassan Imam
– Hassan Imam

2017-11-29 18:41:53 +00:00
Commented Nov 29, 2017 at 18:41 — Hassan Imam
– Hassan Imam, Commented Nov 29, 2017 at 18:41
Have you tried anything?

msanford
– msanford

2017-11-29 18:42:03 +00:00
Commented Nov 29, 2017 at 18:42 — msanford
– msanford, Commented Nov 29, 2017 at 18:42
use postId=([\w-]+) regex

Cruzer
– Cruzer

2017-11-29 18:45:32 +00:00
Commented Nov 29, 2017 at 18:45 — Cruzer
– Cruzer, Commented Nov 29, 2017 at 18:45

Pranav C Balan · Accepted Answer · 2017-11-29 18:50:41Z

4

You can use String#match method.

var post = "[PostContent(postId=123e4567-e89b-12d3-a456-426655440000, postName=My New House, picture=house.jpg, location=San Francisco)]";

console.log(
  post.match(/postId=([\w-]+)/)[1]
)

Regex explanation here

edited Nov 29, 2017 at 18:50

answered Nov 29, 2017 at 18:42

Pranav C Balan

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