Question

How to create a map in JavaScript

Answer 1

let mp = new Map([["typescript", 7], ["javascript", 8], ["nodejs", 5], ["c++", 2]])

console.log([...mp.entries()]);

console.log();

mp.forEach((value, key) => {
    console.log(key, value);
});

console.log();

for (let [key, value] of mp) {
    console.log(key, value);
}


 
 
 
   
/*
run:
        
[["typescript", 7], ["javascript", 8], ["nodejs", 5], ["c++", 2]]

"typescript", 7
"javascript", 8
"nodejs", 5
"c++", 2

"typescript", 7
"javascript", 8
"nodejs", 5
"c++", 2
           
*/

 

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