How can I convert a string to an int array in C#?

Question

for example suppose that I have a string like "231143" and I wanna convert it to an int[] array which I can easily access 2,3,1,1,4,3 as an int. What should I do?

What have you tried yourself? – Mark Baijens May 07 '20 at 13:36 — Mark Baijens, May 07 '20 at 13:36

score 1 · Answer 1 · answered May 07 '20 at 13:36

1

Without any error checking you can do:

var value = "231143";
var array = value.Select(c => c - '0').ToArray();

This makes use of a trick whereby you can subtract '0' from the value of a single character holding a number to get its integer value.

answered May 07 '20 at 13:36

Sean

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Note that this solution is only correct if it is guranteed that the input string **only** contains digits – Ackdari May 07 '20 at 13:39
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@Ackdari I think we can safely assume this given by the wording of the question. – Fildor May 07 '20 at 13:41
Yes, that's what I meant. thank you – Ali Fata May 07 '20 at 13:50

How can I convert a string to an int array in C#?

1 Answers1