trimatoi.go

github.com$/01-$edu$/$z$01.$PrintRune, $--$allow$-$builtin

Instructions

Write a function that transforms numbers within a string, into an int.

If the $-$ sign is encountered before any number it should determine the sign of the returned int.

This function should only return an int. In the case of an invalid input, the function should return $0.$

Note: There will never be more than one sign in a string in the tests.

Expected function

func TrimAtoi$($s string$)$ int $\{$

$\}$

Usage

Here is a possible program to test your function :

package main

import $($

$"$fmt$"$

"piscine"

$)$

func main$()\{$

fmt$.$Println$($piscine$.$TrimAtoi$("12345"))$

fmt$.$Println$($piscine$.$TrimAtoi$("$str$123$ing$45"))$

fmt$.$Println$($piscine$.$TrimAtoi$("012345"))$

fmt$.$Println$($piscine$.$TrimAtoi$("$Hello World!"$))$

fmt$.$Println$($piscine$.$TrimAtoi$("$sd$+$x$1$fa$2$W$3$s$4"))$

fmt$.$Println$($piscine$.$TrimAtoi$("$sd$-$x$1$fa$2$W$3$s$4"))$

fmt$.$Println$($piscine$.$TrimAtoi$("$sdx$1-$fa$2$W$3$s$4"))$

fmt$.$Println$($piscine$.$TrimAtoi$("$sdx$1+$fa$2$W$3$s$4"))$

$\}$

And its output :

$ go run $.$

$12345$

$12345$

$12345$

$0$

$1234$

$-1234$

$1234$

$1234$

$