js get item from object by key code example

Example 1: js find key by value in object

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

Example 2: 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]);