I want to randomly pick an item in a array.Like javascript code
words[Math.floor(Math.random() * words.length)]
But I don't know how to generate a number like javascript Math.random() function in vlang. Does anyone know ?
Per the documentation at rand , you can use the rand
module and for example, the rand.u32n(words.length)
function. Make sure you handle the optional case..
There are a few ways
choose
import rand
words := ['one', 'two', 'three']
word := rand.choose<string>(words, 1) or {[words[0]]} // this is a list
println(word[0])
intn
import rand
words := ['one', 'two', 'three']
word := words[rand.intn(words.len) or {0}]
println(word)
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