js get the key of an object code example

Example 1: how to find the key of an value in an object

function getKeyByValue(object, value) {
  return Object.keys(object).find(key => object[key] === value);
}


const map = {"first" : "1", "second" : "2"};
console.log(getKeyByValue(map,"2"));

Example 2: 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']

Example 3: js get object keys

myObject = {
	"key": "value"
}

Object.keys(myObject); // get array of keys

Example 4: how to get keys in an object javascript

Object.keys(whateverYourObjectIsCalled)