Split string as key:value pair in javascript

Question

I have a String:

"{key1:value1}{key2:value2}".

I want to split these string using regular expression as:

"key1:value1","key2:value2" .

Finally i got expression like val.split(/{(.*?)}/);

Surprisingly, this expression is not working in IE7. Just curious to know why the browser compatibility for Regular expression. And, do we have any alternate regular expression for fixing in IE7.

Why do you want to split it? Is it valid JSON? Or valid JavaScript that could be eval'd? — user1106925
– user1106925, Commented Jan 31, 2012 at 18:51
Its not valid JSON, using this as meta data for some reason. — iamjustcoder
– iamjustcoder, Commented Jan 31, 2012 at 19:33

dfsq · Accepted Answer · 2012-01-31 18:57:03Z

1

I would do it this way:

"{key1:value1}{key2:value2}".replace(/^{|}$/g, '').split('}{')

And it gives you ["key1:value1", "key2:value2"] array.

answered Jan 31, 2012 at 18:57

dfsq

193k26 gold badges244 silver badges261 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Borodin Over a year ago

I think it will give ["{key1:value1", "key2:value2}"], which isn't wanted.

dfsq Over a year ago

@Borodin No, note .replace(/^{|}$/g, '') part which removes these braces from the beggining and from the end. PS. I wouldn't post it without testing.

iamjustcoder Over a year ago

Yes you are right. I am using this for now. But just curious why we cannot make this in single expression.

Sid · Accepted Answer · 2012-01-31 18:52:14Z

0

Are you expecting curly braces in your keys or values? If not, why not just split by '}'?

answered Jan 31, 2012 at 18:52

Sid

7,6412 gold badges31 silver badges42 bronze badges

1 Comment

iamjustcoder Over a year ago

Consider if we have space between the braces.

Borodin · Accepted Answer · 2012-01-31 23:45:08Z

0

Rather than capturing the items that you want to retain (which will result in null strings between those values in the return from split) why not just split on all braces?

val.split(/[{}]+/);

Rather than trying to get split working, I would write this using a simple global match

val.match(/([^{}]+)/g);

which is fine unless there could be whitespace in the string, in which case the messier

val.match(/([^\s{}](?:[^{}]*[^\s{}])?)/g);

is necessary.

edited Jan 31, 2012 at 23:45

answered Jan 31, 2012 at 19:02

Borodin

127k9 gold badges72 silver badges146 bronze badges

4 Comments

dfsq Over a year ago

You should also remove first { and last } because they produse fake array values: ["", "key1:value1", "key2:value2", ""]

iamjustcoder Over a year ago

You are right. But there is no difference between both an expression. Any how both expression is failing in IE7. That's gives suprise to me.

Borodin Over a year ago

Never trust Internet Explorer. It has a poor reputation for adhering to standards.

Borodin Over a year ago

I have written this the way I would choose to for myself - without using split - and added it to my answer. This solution avoids superfluous blank array entries as well as coping with embedded whitespace in the target string if necessary.

Collectives™ on Stack Overflow

Split string as key:value pair in javascript

3 Answers 3

3 Comments

1 Comment

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

1 Comment

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related