regex expression for replace method

Question

I am trying to extract the year in ( ) for a given title

Example:

"This is 40 (2012)"

returns: "This is 40"

title = mTitle.replace(/[^a-zA-Z:\s]/g, '');

This works except for titles that also have a number before the parenthesis. I'm also trying to get the year.

year = mTitle.replace(/\D+/g, '');

I having a trouble wrapping my mind around it.

falsetru · Accepted Answer · 2013-12-04 15:11:24Z

4

To remove trailing year(digits) surrounded by parentheses:

> "This is 40 (2012)".replace(/\(\d+\)$/, '')
"This is 40 "

To also remove spaces before year part:

> "This is 40 (2012)".replace(/\s*\(\d+\)$/, '')
"This is 40"

answered Dec 4, 2013 at 15:11

falsetru

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4 Comments

MickB Over a year ago

That works great. What about just the year inside the parentheses?

falsetru Over a year ago

@MickB, I don't understand what do you mean. Do you want get 2012 from This is 40 (2012)?

falsetru Over a year ago

@MickB, Try "This is 40 (2012)".match(/$(\d+)$$/)[1]. This give you "2004"

MickB Over a year ago

Yes, I did the same thing with the year and I am getting all the numbers instead of just the year in the paranethses

score 0 · Accepted Answer · 2013-12-05 18:20:15Z

0

You could use one of these options :

var year = 'This is 40 (2012)'.slice(-5, -1);
var year = 'This is 40 (2012)'.match(/\d+(?=.$)/)[0];
// regex : one or more digits followed by any char + end of string
var year = 'This is 40 (2012)'.replace(/^.*?(\d+).$/, '$1');
// regex : zero or more chars + one or more digits ($1) + any char

Doc : slice, match, replace, regular expressions.

edited Dec 5, 2013 at 18:20

answered Dec 5, 2013 at 17:59

user1636522

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