function getKeyByValue(object, value) {
return Object.keys(object).find(key => object[key] === value);
}
const map = {"first" : "1", "second" : "2"};
console.log(getKeyByValue(map,"2"));Object.keys(object).find(key => object[key] === value)var foo = {
'alpha': 'puffin',
'beta': 'beagle'
};
var keys = Object.keys(foo);
console.log(keys) // ['alpha', 'beta']
// (or maybe some other order, keys are unordered).const person = {
name: 'Bob',
age: 47
}
Object.keys(person).forEach((key) => {
console.log(person[key]); // 'Bob', 47
});const myObj = {
firstName: 'John',
lastName: 'Duo',
address: '1270.0.0.1'
}
const keys = Object.keys(myObj); // firstName, lastName, address
const values = Object.values(myObj); // John, Duo, 127.0.0.1const key = Object.keys(obj).find(key => obj[key] === value);