loops.go

package examples

import (
	"fmt"
)

func Loops() {
	//FOR LOOP

	for i := 0; i < 10; i++ {
		fmt.Println("FOR LOOP WITH A COUNTER", i)
	}

	//Golang doesn't have "while" or "do while" loops but we can acheive the
	//same with "for" loop by passing only boolean condition

	i := 0

	for i < 10 {
		fmt.Println("FOR LOOP AS WHILE", i)
		i++
	}

	//FOR loop without any condition will create an infinite loop.

	i = 0

	for {
		if i >= 10 {
			break //ending the loop on 10th iteration.
		}

		fmt.Println("INFINITE FOR LOOP", i)
		i++
	}

	//We can also skip the condition part when writing a counter for loop. (also creates an infinite loop)

	for j := 0; ; j++ {
		if j >= 10 {
			break //ending the loop on 10th iteration.
		}

		fmt.Println("COUNTER FOR LOOP WITHOUT CONDITION", j)
	}

	//FOR RANGE

	//In Golang, the for range loop is a convenient and concise way to iterate over elements
	//in various data structures.

	//ARRAY (OR SLICE)

	names := [3]string{"John", "Jane", "Joe"}

	for index, value := range names {
		fmt.Printf("FOR...RANGE ARRAY INDEX: %v, VALUE: %v\n", index, value)
	}

	//MAP

	user := map[string]string{
		"id":    "1",
		"name":  "Daniel",
		"Email": "daniel@gmail.com",
	}

	for key, value := range user {
		fmt.Printf("FOR...RANGE MAP KEY: %v, VALUE: %v\n", key, value)
	}
}