group parts of a string into an array element

Question

If I have a string... abcdefghi and I want to use regex to load every elemnent into an array but I want to be able to stick anything connected by plus sign into the same element... how to do that?

var mystring = "abc+d+efghi"

output array ["a","b","cde","f","g","h","i"]

lawnsea · Accepted Answer · 2011-06-13 21:30:18Z

4

One way to do it:

var re = /([^+])(?:\+[^+])*/g;
var str = 'abcd+e+fghi';
var a = str.match(re).map(function (s) { return s.replace(/\+/g, ''); });
console.log(a);

The value of a[3] should now be 'def'. http://jsfiddle.net/rbFwR/2

edited Jun 13, 2011 at 21:30

answered Jun 13, 2011 at 21:09

lawnsea

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3 Comments

gravityboy Over a year ago

I threw some alerts in there and the plus sign is still there? alert(s.match(/([^+])(?:\+[^+])*/g));;;; alert(s.replace(/\+/g, '')); alert(s[4]);;;

lawnsea Over a year ago

I didn't assign the result back to s, just dumped it to the console. I can see now that my reuse of the s name was confusing. Updated.

gravityboy Over a year ago

Is there anyway to do this without console.log?

agent-j · Accepted Answer · 2011-06-13 21:02:52Z

2

You can use this expression, to produce [a][b][c+d+e][f][g][h][i].

mystring.split ("(.\+)*.")

Next, replace any + characters with empty on the resulting list.

answered Jun 13, 2011 at 21:02

agent-j

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1 Comment

gravityboy Over a year ago

How would you replace any + characters with empty on the resulting list.

jeff · Accepted Answer · 2012-08-09 22:13:33Z

-2

mystring.split("\\+")

Click here for more information.

edited Aug 9, 2012 at 22:13

jeff

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answered Jun 13, 2011 at 20:51

agent-j

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3 Comments

glortho Over a year ago

This would give ['abc','d','efghi']

gravityboy Over a year ago

won't that just split it into 3 sections?

gravityboy Over a year ago

The answer for this should have 7 array elements

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