Answers for "typescript array map"

24

array map javascript

const array1 = [1, 4, 9, 16];

// pass a function to map
const map1 = array1.map(x => x * 2);

console.log(map1);
// expected output: Array [2, 8, 18, 32]
Posted by: Guest on November-25-2019
2

typescript create map

var map = new Map();  

map.set('1', 'Ail');     
map.set(1, 'testvalue');    

console.log( "Value 1= " + map.get(1));   

console.log( "Key is Present in the Map = " + map.has(3) );   

console.log( "Delete value from Map = " + map.delete(1) );
Posted by: Guest on October-09-2020
3

functions in map javascript

const map = new Map();

function foo() {
 return "Hello World!"; 
}

map.set("foo", foo);

console.log(map.get("foo")()); // Output: "Hello World!
Posted by: Guest on May-13-2020

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