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iOS Enhancing a Quiz App in iOS

Kiran Radhakrishnan
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Kiran Radhakrishnan
iOS Development Techdegree Student 3,809 Points
Posted by Kiran Radhakrishnan
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Kiran Radhakrishnan
iOS Development Techdegree Student 3,809 Points

Generating random numbers in swift without repetition

Is there a way to generate random numbers in swift without repetition?

1 Answer

Ben Shockley
Ben Shockley
6,094 Points
Ben Shockley
Ben Shockley
6,094 Points

I am currently working on an app that is doing this.

So as each random number is generated I append it to an array called previouslyUsedNumbers. Then in my generateRandomNumber function there is a loop that generates a new random number, then checks the previouslyUsedNumbers array to see if it has been used before. If it has, it goes back and generates another random number and rechecks, etc. If that number hasn't been used before it returns that number, and appends it to the array.

Hope this helps?