get keys of dictionary js
// Get keys of a dictionary
let dict = { a:1 , b:2 , c:3 }
console.log( Object.keys(dict) ) // expected output : ['a', 'b', 'c']get keys of dictionary js
// Get keys of a dictionary
let dict = { a:1 , b:2 , c:3 }
console.log( Object.keys(dict) ) // expected output : ['a', 'b', 'c']key value in map javascript
const map = {"a": 1, "b": 2, "c": 3};
const mapped = Object.entries(map).map(([k,v]) => `${k}_${v}`);
console.log(mapped);javascript key value map
Shorthand: (key,value) Map
const callbackMap = new Map<string, PushEventCallback>([
["addComment", addCommentCallback],
["commentModified", editCommentCallback]
]);
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#:~:text=Cloning%20and%20merging%20MapsCopyright © 2021 Codeinu
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