Slice

• slice

• len

• cap

• You can view a slice to be just a very flexible array.

• Actually it is a slice of an array. A view on a section of the array.

• len - length

• cal - capacity

The only difference you can see when we create a slice is that we don't explicitely say its size and we also don't put the 3 dots ... in the square bracket.

There is also a cap function that returns the size of the underlying array.

We can access the elements of a slice using the postfix square-bracket notation. Just as with arrays.

package main

import (
	"fmt"
)

func main() {
	var dwarfs = []string{"Doc", "Grumpy", "Happy", "Sleepy", "Bashful", "Sneezy", "Dopey"}

	fmt.Println(dwarfs)
	fmt.Println(dwarfs[0])
	fmt.Println(len(dwarfs))
	fmt.Println(cap(dwarfs))
}

[Doc Grumpy Happy Sleepy Bashful Sneezy Dopey]
Doc
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