TIL: pre-Go 1.22, closures inside for loops would share the same value for a variable.
this would output `3, 3, 3`
![Screenshot of Go code:
var prints []func()
for i := 1; i <= 3; i++ {
prints = append(prints, func() { fmt.Println(i) })
}
for _, print := range prints {
print()
}](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:n45d7heasyttl3zjkgmcfde3/bafkreiaffjvkwf3tsflupvpioef7rymltdsfnquk75dmzylcp4zjc36ktq)
niya
@niya.blue
165 followers 281 following 149 posts
🏳️⚧️ she/her prev: Developer at MagicBell (YC W21)
🏳️⚧️ she/her prev: Developer at MagicBell (YC W21)
![A code snippet screenshot with the code:
medals := []string{"gold", "silver", "bronze"}
for i := len(medals) - 1; i >= 0; i-- {
fmt.Println(medals[i])
}
the medals[i] will go out of bounds if the length were a unsigned int](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:n45d7heasyttl3zjkgmcfde3/bafkreigaeqzaks4uvwrxwb4xlrypl6hprozjnhmoddj66btinihw6rlaei)
![code screenshot:
// func make(t Type, size ...int) Type
make(map[string]int)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:n45d7heasyttl3zjkgmcfde3/bafkreidgup27ydurqlpwap7gw4w7m77zzpozxyqaujflv7fzx34ed2jbsu)
