for (const [ key, value ] of Object.entries(dictionary)) { // do something with `key` and `value` } Explanation: Object.entries() takes an object like { a: 1, b: 2, c: 3 } and turns it into an array of …

Object.keys() returns the keys (properties) of any object type. Object.values() returns the values of all object keys (properties). Object.entries() returns the keys and values of any object types.

Jun 27, 2021 · Use Object.entries(obj) to get an array of key/value pairs from obj. Use array methods on that array, e.g. map , to transform these key/value pairs. Use …

Apr 28, 2025 · Object.keys() returns an array whose elements are strings corresponding to the enumerable string-keyed property names found directly upon object. This is the same as …

Feb 20, 2020 · Learn how to use the for...in statement, Object.keys(), Object.values(), and Object.entries() methods to iterate over object properties in JavaScript.

Jul 14, 2024 · Objects can be iterated using for...in loops and Object.keys(), Object.values(), and Object.entries(). Let’s see how you can use each method: 1. using for...in method

Jan 17, 2013 · If you want the key and value when iterating, you can use a for...of loop with Object.entries. const myObj = {a: 1, b: 2} for (let [key, value] of Object.entries(myObj)) { …

Aug 24, 2023 · There are several ways to iterate through the properties of an object in JavaScript. We will cover the three most common methods: for...in loop, Object.keys(), and …

Jul 10, 2019 · You can get the size of a map (for a plain object you have to do it manually) and use as key any object type (plain object uses as key a string primitive type). Let's see what …

The for in loop iterates over a person object; Each iteration returns a key (x) The key is used to access the value of the key; The value of the key is person[x]