Map Lab

Constructing and initializing a map using a simple object

//Initialize map
const map = new Map([['width', 1000], ['pickle', 2000],
					['fun', 3000], ['big', 4000]]);

gettingValues

Getting values from map (object)

let obj;
//Initialize map
const map = new Map([['width', 1000], ['pickle', 2000],
					['fun', 3000], ['big', 4000]]);

//Now we "get" the value at the key
prn(map.get('width'));
prn(map.get('pickle'));

settingValues

Setting values into map (object)

let map;

//Now we "set" key-value pairs into map

//Two styles (similar to "gettingValues")

//Set values into map
map = new Map();
map.set('width', 333);
map.set('height', 444);
prn(map.get('width'));
prn(map.get('height'));

iteration

Iterating over the map

//Initialize map
const map = new Map([['width', 1000], ['pickle', 2000],
					['fun', 3000], ['big', 4000]]);

//Iterate
for (const keyValue of map){
	prn(keyValue);
}
//Iterate (extracting from pair)
for (const keyValue of map){
	prn(`key is ${keyValue[0]}, value is ${keyValue[1]}`);
}