Count Space(s) in a string

Question

I have a string "John Doe's iPhone6"

Visually, I know that it contains 2 spaces.

How do I count spaces in a string in javascript ?

I've tried

var input = this.value;
// console.log(input.count(' '));

What are you tried so far? (don't show the inexistent `count()` function) — Marcos Pérez Gude, Mar 07 '16 at 16:43
use `match()` https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/match — Daniel, Mar 07 '16 at 16:43
Duplicate question which has been answered here: http://stackoverflow.com/a/881111/6015622 — kravse, Mar 07 '16 at 16:44

score 31 · Answer 1 · answered Mar 07 '16 at 16:44

31

Try this

var my_string = "John Doe's iPhone6";
var spaceCount = (my_string.split(" ").length - 1);
console.log(spaceCount)

answered Mar 07 '16 at 16:44

Mike

1

the output will be 2 – dizad87 Aug 07 '18 at 15:09
Number of spaces would be 2. If you want to find the number of words remove the -1. – Nick Gallimore Oct 21 '19 at 15:50

score 11 · Answer 2 · edited Mar 07 '16 at 16:48

11

Use RegExp:

"John Doe's iPhone6".match(/([\s]+)/g).length

edited Mar 07 '16 at 16:48

James Thorpe

answered Mar 07 '16 at 16:45

elad.chen

1

This method will be failed if your string like this "%20%20%20%20%20%20%20%20%20%20%20%20%20% ------------by some one" %20 is space since stackoverflow won't show each the space – Ethan Yan Sep 11 '18 at 23:42
This will also fail if there are no spaces, because match will return `null`. Best to check for null before getting the .length – fallerd Sep 21 '22 at 22:13

Alvaro Silvino · Answer 3 · 2016-03-07T19:11:10.630

9

Use split and count them less 1 (-1):

var string = "John Doe's iPhone6";
string.split(" ").length-1

edited Mar 07 '16 at 19:11

answered Mar 07 '16 at 16:44

Alvaro Silvino