Detecting and deleting "" of a returned split function array

Asked Jan 19 '23 at 13:48

Active Jan 19 '23 at 13:49

Viewed 25 times

I want to convert string into array using split when i have this string which i want to convert it to array. Here is my code :

var str = "Hello  I am     Here";
var separator = str.split(" ");
console.log(separator); // returns ['Hello', '', 'I', 'am', '', '', '', '', 'Here']
for(var i in separator){
    if(separator[i] == ""){
        separator.splice(i,1);
    }
}
console.log(separator); // returns ['Hello', 'I', 'am', '', '', 'Here']

but when i'm using split and deleting some null strings some of them arent deleted. why?

edited Jan 19 '23 at 13:49

asked Jan 19 '23 at 13:48

Anonymous523412

no. my problem is the empty string array indices arent deleted – Anonymous523412 Jan 19 '23 at 13:50
2

the short version is that you're changing the array (with splice) while looping – user19513069 Jan 19 '23 at 13:51
1

separator.filter(x => x !== "") should do the trick. @user19513069 is right though, don't modify array while you are looping it. – Matija Sirk Jan 19 '23 at 13:56
I think instead of your for-loop, I would use a an array filter and filter out the empty strings. – mykaf Jan 19 '23 at 13:57

Detecting and deleting "" of a returned split function array

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