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39
14-arrays/06-comparing-arrays/02-not-equal-arrays/main.go
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39
14-arrays/06-comparing-arrays/02-not-equal-arrays/main.go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import "fmt"
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func main() {
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a := [3]int{6, 9, 3}
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b := [3]int{3, 9, 6}
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if a == b {
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fmt.Println("they're equal!")
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} else {
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fmt.Println("they're not equal! a==b?", a == b)
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// but, they're comparable
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// since their types are identical
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fmt.Printf("1st array's type is %T\n", a)
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fmt.Printf("2nd array's type is %T\n", b)
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// go compares arrays like this
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// it compares the elements one by one
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fmt.Println(a[0] == b[0]) // false
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fmt.Println(a[1] == b[1]) // true
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fmt.Println(a[2] == b[2]) // false
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// actually Go will quit comparing these arrays
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// once it sees unequal items
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//
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// so, it will stop the comparison (short-circuit)
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// when it sees the first item is false
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// and it will return false
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}
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}
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