Member Access Expression

Member access expressions are used to access a member or multiple members of an object or iterable.

Syntax

Dot Notation

Syntax for accessing a member of an object:

EXP . IDENTIFIER

Bracket Notation

Syntax for accessing a member of an object or an element of an iterable (may be string or list):

EXP [ EXP ]

Slice Notation

Syntax for accessing a slice of an iterable (may be string or list):

EXP [ EXP : EXP ]

Examples

Accessing a member of an object

interface SomeInterface {
    key: str;
}

var obj: SomeInterface = { key: "value" };
var value: str = obj.key;
print(value); // -> "value"

Accessing an element of an array

var list: Array<num> = [1, 2, 3];
var item: num = list[1];
print(item); // -> 2

Accessing a slice of an array

var list: Array<num> = [1, 2, 3, 4, 5];
var slice: Array<num> = list[1:3];
print(slice); // -> [2, 3]

Accessing a slice of a string

var str: str = "Hello, World!";
var slice: str = str[1:5];
print(slice); // -> "ello"