Return a map and store the result in diferent variables

user_5924755 0
Viewed 93

In JavaScript I can store the values of array into variables like this:

[a, b, c] = [1, 2, 3]

I created a variable function( it return a map with the same number of arguments), I would like to know if Go has a shortcut like JavaScript

go return function arrays
2 Answers

Based on the suggestion from comments ,I created a small example for your scenario:

package main

import (
    "fmt"
)

    func main() {
    
        myArray := []int{1, 2, 3}
        fmt.Println(myArray)
    
        a, b, c := myArray[0], myArray[1], myArray[2]
    
        fmt.Println(a, b, c)
    }

Output:

[1 2 3]
1 2 3
user_159871470

Javascript's destructuring assignment syntax is not available in Go, however Go's syntax is sometimes concise too, depending what your input looks like.

Declaring and initializing several variables in a single LOC is straightforward, and it works even with variables of different types:

a, b, c := 42, "hello", 5.0

Source. Playground.

You can assign values to existing variables as well:

a, b, c = 42, "hello", 5.0

Playground.

If your input data is a slice s, then per @Gopher's answer the code will look like:

a, b, c := s[0], s[1], s[2]
user_8711340
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