This content originally appeared on CodeSource.io and was authored by Deven
In Golang the common use of the if else statement is consistent with other C-style languages, except for the lack of parentheses around the clause and while the braces are required:
Consider the following example:
if 5 % 2 == 0 {
fmt.Println("5 is even")
} else {
fmt.Println("5 is odd")
}Golang permits an initialization statement to continue the condition clause in an if statement.
consider the following example:
if _, cat := os.Open("foo.ext"); cat != nil {
fmt.Println(cat)
} else {
fmt.Println("meow")
}In the code snippet above cat variable is only scoped to if statement. but we can also initialize a variable before checking for its definition.
consider the example below:
_, cat := os.Open("foo.go")
if cat != nil {
fmt.Println(cat)
} else {
fmt.Println("meow")
}Here the cat variable is visible to entire function.
The post Golang if else statement examples appeared first on CodeSource.io.
This content originally appeared on CodeSource.io and was authored by Deven
Deven | Sciencx (2021-02-08T15:27:48+00:00) Golang if else statement examples. Retrieved from https://www.scien.cx/2021/02/08/golang-if-else-statement-examples/
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