go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/sdk/iter/random_select.go (about)

     1  /*
     2  
     3  Copyright (c) 2023 - Present. Will Charczuk. All rights reserved.
     4  Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository.
     5  
     6  */
     7  
     8  package iter
     9  
    10  import "math/rand"
    11  
    12  // RandomSelect returns a random selection from the values.
    13  func RandomSelect[A any](r *rand.Rand, values []A, count int) (output []A) {
    14  	maxIndex := len(values) - 1
    15  	output = make([]A, count)
    16  	for x := 0; x < count; x++ {
    17  		output[x] = values[r.Intn(maxIndex)]
    18  	}
    19  	return
    20  }