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Today Xiaobian to share with you how to use the len() and cap() functions of Go language related knowledge points, detailed content, clear logic, I believe that most people still know too much about this knowledge, so share this article for everyone to refer to, I hope you have some gains after reading this article, let's learn about it together.

len() and cap() functions

Slices are indexable and the length can be obtained by the len() method.

Slice provides a way to calculate capacity cap() measures how long slices can be.

The following are specific examples:

examples

package main

import "fmt"

func main() {

var numbers = make([]int,3,5)

printSlice(numbers)

}

func printSlice(x []int){

fmt.Printf("len=%d cap=%d slice=%v\n",len(x),cap(x),x)

}

The output of the above example is:

len=3 cap=5 slice=[0 0 0] The above is "Go language len() and cap() function how to use" All the content of this article, thank you for reading! I believe everyone has a great harvest after reading this article. Xiaobian will update different knowledge for everyone every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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