How to split string without getting empty values to the output array

Question

I am using split function to split my string /value/1

var value = "/value/1/";

var arr = value.split("/");

in result I will get an array with 4 elements "", "value", "1", ""; But I really need the nonempty values in the output array. Is there any way to produce an array base on my input string but array without blank elements?

My string could be /value/1/ /value/1 /value/ /value basically I am precessing http request.url.

yeah it is just my wrong formatting here

Sergino
– Sergino

2015-12-19 13:30:48 +00:00
Commented Dec 19, 2015 at 13:30 — Sergino
– Sergino, Commented Dec 19, 2015 at 13:30

Louay Alakkad · Accepted Answer · 2015-12-19 13:13:22Z

19

Try using Array#filter.

var arr = value.split("/").filter(function (part) { return !!part; });

Or the same shorter version as Tushar suggested.

var arr = value.split("/").filter(Boolean);

edited Dec 19, 2015 at 13:13

answered Dec 19, 2015 at 13:10

Louay Alakkad

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3 Comments

Tushar Over a year ago

If you want to do this way, then use value.split('/').filter(Boolean);

Louay Alakkad Over a year ago

I'd typically use ES6 to make it look prettier, but yeah that's also possible.

Tushar Over a year ago

For reference of how Boolean passed to filter works. What is the filter call for in this string split operation? and Get number of non-empty elements from nested arrays

Tushar · Accepted Answer · 2015-12-19 13:16:43Z

8

You can use match with regex.

str.match(/[^\/]+/g);

The regex [^\/]+ will match any character that is not forward slash.

function getValues(str) {
  return str.match(/[^\/]+/g);
}

document.write('<pre>');
document.write('<b>/value/1/</b><br />' + JSON.stringify(getValues('/value/1/'), 0, 4));
document.write('<br /><br /><b>/value/1</b><br />' + JSON.stringify(getValues('/value/1'), 0, 4));
document.write('<br /><br /><b>/value/</b><br />' + JSON.stringify(getValues('/value/'), 0, 4));
document.write('<br /><br /><b>/value</b><br />' + JSON.stringify(getValues('/value'), 0, 4));
document.write('</pre>');

edited Dec 19, 2015 at 13:16

answered Dec 19, 2015 at 13:10

Tushar

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2 Comments

Sergino Over a year ago

what does two last params ...0, 4 means in JSON.stringify() ?

Tushar Over a year ago

@sreginogemoh Those are just for showing results on the page, the parameters are for formatting purpose. You can only use str.match(/[^\/]+/g); code to get matches.

Ramziddin Makhmudov · Accepted Answer · 2015-12-20 09:08:05Z

0

If you still want to use String to match a symbol you can try using: RegExp("/", "g") - but this is not the best case, if you still want not to match escaped symbol \ and provide some API for use you can user RegExp("[^\/]*", "g") or /[^\/]*/g

answered Dec 20, 2015 at 9:08

Ramziddin Makhmudov

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Comments

mikakun · Accepted Answer · 2025-10-18 10:53:46Z

0

category one liner, no regx , no empty string :

    const multiSplit = (toSplit, delimitersArray) => delimitersArray.reduce((all, s) => all.map(v => v.split(s).filter(Boolean)).flat() ,[toSplit])

    console.log(multiSplit('what is going on with the world ??? u sure u want to leave it all to ai ?!', ['?',' ', '\n']))

answered Oct 18 at 10:53

mikakun

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