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Alexander Medvednikov edited this page Apr 12, 2022 · 7 revisions
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Hello World
package main
import "fmt"
func main() {
  fmt.Println("Hello World!")
}

fn main() {
  println('Hello World!')
}
Slice initialization
numbers := []int{1, 2, 3, 4}

numbers := [1, 2, 3, 4]
Add an element to a slice
numbers = append(numbers, 5)

numbers << 5
Printing a slice
fmt.Println(numbers)

println(numbers)
Filtering a slice
even := make([]int, 0)
for _, num := range numbers {
  if num % 2 == 0 {
    even = append(even, num)
  }
}

even := numbers.filter(it % 2 == 0)
Checking if a slice contains an element
contains := false
for _, num := range numbers {
        if num == x {
            contains = true
            break
        }
    }

contains := x in numbers
Reading a file
import (
    "io/ioutil"
    "log"
)
b, err := ioutil.ReadFile(path)
if err != nil {
        log.Println(err)
        return
}
text := string(b)

import os
text := os.read_file(path)or{
  eprintln(err)
  return
}
Testing a function
package greeter_test
import (
    "testing"
)
func TestHello(t *testing.T) {
    if Hello() != "Hello" {
        t.Fatalf("Hello() failed")
    }
}

fn test_hello() {
    assert hello() == 'hello'
}