April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
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func (n *Number) Double() {
*n *= 2
}
Pamiętasz metodę
Double
przedstawionego
wcześniej typu
Number
? Pierwotnie
odbiorcą była w nim zwykła wartość typu
odbiorcy —
Number
. Zobaczyłeś jednak, że
parametr odbiorcy metody (tak jak każdy
inny parametr) przyjmuje
kopię pierwotnej
wartości. Metoda
Double
modyfikowała
kopię, która była usuwana po zakończeniu
pracy przez metodę.
Teraz, gdy jako odbiorca metody
SetYear
podawany jest wskaźnik,
po uruchomieniu kodu zobaczysz, że pole
Year
jest modyfikowane.
type Date struct {
Year int
Month int
Day int
}
func (d *Date) SetYear(year int) {
d.Year = year
}
func main() {
date ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.