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)const person = {
name: 'Bob',
age: 47
}
Object.keys(person).forEach((key) => {
console.log(person[key]); // 'Bob', 47
});let arr = [
{ name:"string 1", value:"this", other: "that" },
{ name:"string 2", value:"this", other: "that" }
];
let obj = arr.find((o, i) => {
if (o.name === 'string 1') {
arr[i] = { name: 'new string', value: 'this', other: 'that' };
return true; // stop searching
}
});
console.log(arr);var obj = {
a: "A",
b: "B",
c: "C"
}
console.log(obj.a); // return string : A
var name = "a";
console.log(obj[name]);