Node.js Parsing A Number Inside a String

Question

Given a string like:

Recipient: [email protected]
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic: No

How do I get the "5.0.0" and "permanent failure" only if it's always after Status: ? ?

Thanks

Máthé Endre-Botond · Accepted Answer · 2017-07-16 09:14:04Z

36

var regex = /Status: ([0-9\.]+) \(([a-zA-Z ]+)\)/
var result = string.match(regex);
var statusNumber = result[1];
var statusString = result[2];

You should extend these: [0-9\.], [a-zA-Z ] selectors if you expect other characters in these values. For now the first one expects numbers and dots, the second characters and spaces

edited Jul 16, 2017 at 9:14

answered Apr 23, 2011 at 16:08

Máthé Endre-Botond

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4 Comments

haemse Over a year ago

Why is this one regEx returning 2 results?

haemse Over a year ago

Alsoe ^ and $ should not be there

Máthé Endre-Botond Over a year ago

@haemse It's returning two results because there are two capturing groups in it. Actually it's returning three, the first one (at index 0) being the full match. The ^ and $ wasn't in the original answer. I removed them. Thanks.

haemse Over a year ago

I'm sorrry seems like str.match(reg) returns an array of all matches whereas reg.exec returns an array with details for one result. Also all the matching groups.

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