Go by Example: Range
Here we use range to sum the numbers in a slice. Arrays work like this too. nums := []int{2, 3, 4} sum := 0 for _, num := range nums { sum += num } fmt.Println("sum:", sum) range on arrays and slices provides both the index and value for each entry. Above we didn’t need the index, so we ignored it with the blank identifier _. Sometimes we actually want the indexes though.
Go by Example: Slices
Unlike arrays, slices are typed only by the elements they contain (not the number of elements). An uninitialized slice equals to nil and has length 0. To create an empty slice with non-zero length, use the builtin make. Here we make a slice of strings of length 3 (initially zero-valued). By default a new slice’s capacity is equal to its length; if we know the slice is going to grow ahead of time,
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Go by Example: For
Go by Example: Switch
Go by Example: Maps
Go by Example: Regular Expressions
Go by Example: Sorting
Go by Example: Closures
Go言語のサンプルがつまった『Go By Example』 | 100SHIKI
