How to print the length of a map in Golang 1.20
0In this video we are going to generate source code for the GoLang Program, How to print the length of a map using chatGPT.
After generating we will verify and run the generated code.
IMPORTANT NOTE on SOURCE CODE: only source code that are acceptable by the youtube description box will be displayed.
In this program I have replaced the angled brackets with > or <. once you copy the source code to editor replace it with greater than or less than symbols respectively.
##############SOURCE CODE#########################
package main
import "fmt"
func main() {
// Declare a map of string keys and int values
ages := map[string]int{
"John": 30,
"Alice": 25,
"Bob": 35,
}
// Print the length of the map using the len function
fmt.Printf("The length of the ages map is %d\n", len(ages))
}
##############END OF SOURCE CODE#########################
Below is the explanation for the program:
In this program, we declare a map of string keys and int values using the syntax ages := map[string]int{key1: value1, key2: value2, ...}. We initialize the map with three key-value pairs.
We then print the length of the map using the len function, which returns the number of key-value pairs in the map.
This output shows that the program has successfully printed the length of the map. In this case, the length is 3 because there are three key-value pairs in the ages map.
#go #goprogramming #golang #golangtutorial #golanguage