Create an array from a string in PowerShell

Question

How do I create an array of integers from a variable containing the string "3 4 5 4 3"?

What have you tried, and in what way(s) has it not worked? Please don't just ask for an answer with no demonstration of attempting it yourself. — alroc
– alroc, Commented Dec 9, 2012 at 13:22

Keith Hill · Accepted Answer · 2012-12-10 22:21:01Z

8

I prefer:

[int[]] -split "3 4 5  4   3"

-split handles whitespace space better than String.Split(). With String.Split(), if there is more than one space between numbers you wind up with empty strings in the generated array. The empty strings are coerced to 0 by PowerShell e.g.:

C:\PS> [int[]]"3 4 5  4   3".Split()
3
4
5
0
4
0
0
3

edited Dec 10, 2012 at 22:21

answered Dec 9, 2012 at 1:51

Keith Hill

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Shay Levy · Accepted Answer · 2012-12-08 20:38:44Z

5

Splitting the string creates an array of string, add a cast to an array of integers:

[int[]]"3 4 5 4 3".Split()

answered Dec 8, 2012 at 20:38

Shay Levy

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