reflect.Cap() Function in Golang with Examples Last Updated : 28 Apr, 2025 Comments Improve Suggest changes Like Article Like Report Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Cap() Function in Golang is used to get the v's capacity. To access this function, one needs to imports the reflect package in the program. Syntax: func (v Value) Cap() int Parameters: This function does not accept any parameters.Return Value: This function returns the integer value. Below examples illustrate the use of the above method in Golang:Example 1: C // Golang program to illustrate // reflect.Cap() Function package main import ( "fmt" "reflect" ) func main() { c := make(chan int, 1) vc := reflect.ValueOf(c) succeeded := vc.TrySend(reflect.ValueOf(123)) // use of Cap() method fmt.Println(succeeded, vc.Len(), vc.Cap()) } Output: true 1 1 Example 2: C // Golang program to illustrate // reflect.Cap() Function package main import ( "fmt" "reflect" ) // Main function func main() { var val chan string var strVal reflect.Value = reflect.ValueOf(&val) indirectStr := reflect.Indirect(strVal) value := reflect.MakeChan(indirectStr.Type(), 1024) // use of Cap() method fmt.Printf("Type : [%v] \nCapacity : [%v]", value.Kind(), value.Cap()) } Output: Type : [chan] Capacity : [1024] Comment More infoAdvertise with us Next Article reflect.Cap() Function in Golang with Examples S SHUBHAMSINGH10 Follow Improve Article Tags : Go Language Golang-reflect Similar Reads reflect.Call() Function in Golang with Examples Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Call() Function in Golang is used to calls the function v with the input arguments in. To access this function, o 2 min read reflect.Copy() Function in Golang with Examples Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Copy() Function in Golang is used to copies the contents of the source into destination until either destination 2 min read reflect.ChanOf() Function in Golang with Examples Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.ChanOf() Function in Golang is used to get the channel type with the given direction and element type, i.e., t re 1 min read reflect.Append() Function in Golang with Examples Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Append() Function in Golang is used to append appends the values x to a slice s. To access this function, one nee 2 min read reflect.CanSet() Function in Golang with Examples Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.CanSet() Function in Golang is used to check whether the value of v can be changed. To access this function, one 2 min read Like