Programming-Idioms

Edit summary for version 42 by programming-idioms.org:
[Go] Fixed code and demo: list -> x

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2016-04-20, 20:23:02

2016-04-20, 20:24:53

Idiom #11 Pick a random element from a list

List x must be non-empty.

List x must be non-empty.

import "math/rand"

import "math/rand"

func pickT(x []T) T {
	return x[rand.Intn(len(list))]
}

func pickT(x []T) T {
	return x[rand.Intn(len(x))]
}

If you decide to implement pickT, you will have to write it separately for each desired type T.

If you decide to implement pickT, you will have to write it separately for each desired type T.

https://golang.org/pkg/math/rand/#Intn

https://golang.org/pkg/math/rand/#Intn

http://play.golang.org/p/RFt6HM-GQx

http://play.golang.org/p/u6Db7wb7v_

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