get key by value js code example

Example 1: getkey by value js

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

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: for key value in object javascript

for (const [key, value] of Object.entries(object1)) {
  console.log(`${key}: ${value}`);
}

Example 4: js find key by value in object

Object.keys(object).find(key => object[key] === value)

Example 5: get all keys of object in javascript

myObject = {
	"key": "value",
    "key2":"value2"
}
Object.keys(myObject);
//console.log(Object.keys(myObject))   = ["key", "key2"]

Example 6: javascript object get value by key

var obj = {
   a: "A",
   b: "B",
   c: "C"
}

console.log(obj.a);  // return string : A

var name = "a";
console.log(obj[name]);