Retrieval

There are two ways to retrieve the value for a given key, dot notation and bracket notation.

const obj = { greeting: 'hello world' };

obj.greeting;
// => hello world

obj['greeting'];
// => hello world

// Bracket notation also works with variables.
const key = 'greeting';
obj[key];
// => hello world

Using the dot notation as a shorthand has the same restriction as omitting the quotation marks. It only works if the key follows the identifier naming rules.

---

Backlinks

• Objects