🚩JSON
JSON stands for JavaScript Object Notation. It is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. JSON is often used for transmitting data between a server and a web application, as well as for storing configuration settings and data.
JavaScript, JSON is represented as a string, and it closely resembles JavaScript object literal notation. It consists of key-value pairs, where keys must be strings, and values can be strings, numbers, booleans, arrays, or nested objects. The key-value pairs are separated by commas, and the entire JSON object is enclosed in curly braces {}.
JavaScript provides methods to work with JSON data:
JSON.stringify(): Converts a JavaScript object into a JSON string.
JSON.parse(): Parses a JSON string and returns a JavaScript object.
const person = {
name: "John Doe",
age: 30,
email: "john@example.com",
isSubscribed: true,
hobbies: ["Reading", "Running", "Cooking"],
address: {
city: "New York",
zipCode: "10001",
},
};
// Convert JavaScript object to JSON string
const jsonString = JSON.stringify(person);
console.log(jsonString);
/* Output:
{
"name":"John Doe",
"age":30,
"email":"john@example.com",
"isSubscribed":true,
"hobbies":["Reading","Running","Cooking"],
"address":{"city":"New York","zipCode":"10001"}
}
*/
// Parse JSON string back to JavaScript object
const parsedObject = JSON.parse(jsonString);
console.log(parsedObject.name); // Output: "John Doe"
console.log(parsedObject.hobbies); // Output: ["Reading", "Running", "Cooking"]
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