How to add empty space at the end of string?

Question

Currently, I got let str = 'prefix' which has length of 6, but I would like to add empty space at the end and update it to str = 'prefix ' with length of 7.

I have tried str.split("").push("").join("") but I get error saying join is not a function. I have also tried str[str.length] = ' ', but this doesn't work either. What other options do I have?

You get the error because `push()` returns the new length, not the array. So you would be doing `7.join('')` and a number does not have a join method. — epascarello, Jun 20 '22 at 15:29
what is an `empty space` ? a space is 1 character, an empty string is zero characters, so, an `empty space` isn't a nonsens ? — Mister Jojo, Jun 20 '22 at 15:36

score 3 · Answer 1 · answered Jun 20 '22 at 15:29

3

You can concatenate the strings:

let str = 'prefix';
str = str + ' ';
// str === 'prefix '

or, if you want to pad any sized string to a specified length:

let str = 'prefix';
str = str.padEnd(7, " ");
// str === 'prefix '

answered Jun 20 '22 at 15:29

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How to add empty space at the end of string?

1 Answers1