Dictionary Prototypes

Dictionary values expose key/value helpers.

let user = {
    "name": "Martin",
    "age": 19
}

println(user.keys())
println(user.values())

Current Literal Limitation

Prototype calls currently work reliably on values stored in variables.

let s = "string"

println(s.length())

Calling prototype methods directly on literals is currently limited by AST/parser behavior.

// Currently may not work:
println("string".length())

Prefer assigning the literal to a variable first.

let text = "string"

println(text.length())

Methods

Method	Returns	Description
keys()	[]K	Returns all dictionary keys.
values()	[]V	Returns all dictionary values.
remove(key: K)	void	Removes a key from the dictionary.

Indexed Access

Dictionaries implement internal __get__ and __set__, which power indexed access.

let user = {
    "name": "Martin"
}

println(user["name"])

user["role"] = "admin"

println(user["role"])

Keys and Values

let config = {
    "host": "localhost",
    "port": 3000
}

println(config.keys())
println(config.values())

Removing Keys

let config = {
    "host": "localhost",
    "port": 3000
}

config.remove("host")

println(config.keys())

Missing Keys

If a key does not exist, direct access can throw an error.

let config = {
    "port": 3000
}

// This can error if "host" does not exist:
println(config["host"])