try/catch

try/catch

Node.js

function foo(fail) {
  if (fail) {
    throw Error('my error')
  }
}

function main() {
  try {
    foo(true)
  } catch(err) {
    console.log(`caught error: ${err.message}`)
  }
}

main()

Output

caught error: my error

Go

package main

import (
    "errors"
    "fmt"
)

func foo(fail bool) error {
    if fail {
        return errors.New("my error")
    }

    return nil
}

func main() {
    err := foo(true)
    if err != nil {
        fmt.Printf("caught error: %s\n", err.Error())
    }
}

Output

caught error: my error