Delete Map element


examples/delete-key/delete-key.go
package main

import "fmt"

func main() {
    grades := map[string]int{
        "Mary":  99,
        "Jane":  88,
        "Bob":   93,
    }
    fmt.Printf("%T\n", grades)   // map[string]int


    fmt.Println(grades)           // map[Bob:93 Jane:88 Mary:99]

    delete(grades, "Jane")

    fmt.Println(grades)           // map[Bob:93 Mary:99]
}