Extracting date from a string in JS

Question

I have a string like so:

var string = "some text 2012-01-01 some more text here"

I would like to be able to extract the date from this string, or any one like it, and store the 2012-01-01 or whatever date is there to a variable.

I have found the .match() method but I am stuck from there.

Thanks

Mike Samuel · Accepted Answer · 2012-01-13 02:50:11Z

1

var str =  "some text 2012-01-01 some more text here";
var rex = /\d{4}-\d{2}-\d{2}/;
alert(str.match(rex));

edited Jan 13, 2012 at 2:50

Mike Samuel

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answered Jan 13, 2012 at 0:05

Zakaria

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1 Comment

RobG Over a year ago

Noting that str.match() will return either an array of one or more matches, or null.

Ibu · Accepted Answer · 2012-01-13 00:03:05Z

0

var string = "some text 2012-01-01 some more text here";

// you will be using regular expressions
string.match(/(\d{4}-\d{2}-\d{2}/));

answered Jan 13, 2012 at 0:03

Ibu

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3 Comments

epascarello Over a year ago

The poster is asking how to get the date out of the string, your answer does not answer that.

RobG Over a year ago

@epascarello—presumably that's your down vote. Strange, as this answer is almost exactly the same as the accepted answer.

epascarello Over a year ago

@RobG, person edited within the 3 minutes since that is not the original code which was just date code. :) Original code was just new Date("2012-01-01")

gdbj · Accepted Answer · 2012-01-13 00:03:58Z

0

Parsing strings is always a pain. Even more so when parsing a date from within a string given the different formats that dates can have. If the date will always be xxxx-xx-xx, then you could use a split() function splitting on a space " ", and then iterate across the array to find a string that could successfully parse to a date.

Based on my experience, however, if you can get it so your date comes to you in a better way, it will be many times easier for you.

answered Jan 13, 2012 at 0:03

gdbj

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2 Comments

IMcD23 Over a year ago

The dates will always be in that format. So how would I go about getting the date out of the array?

gdbj Over a year ago

oh.. others have suggested regex for matching the pattern. if you can guarantee the format, then that's the best. :)

j08691 · Accepted Answer · 2012-01-13 00:04:59Z

0

var str="some text 2012-01-01 some more text here";
var pattern=/[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]/gi;
alert(str.match(pattern));

And a jsFiddle if you would like.

answered Jan 13, 2012 at 0:04

j08691

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