TypeScript:
עבודה עם JSON

const jsonStr = '{"name": "John Doe", "age": 30}';
const obj = JSON.parse(jsonStr);

console.log(obj.name); // פלט: John Doe

const person = {
  name: "Jane Doe",
  age: 25,
};

const jsonStr = JSON.stringify(person);

console.log(jsonStr); // פלט: {"name":"Jane Doe","age":25}

interface Person {
  name: string;
  age: number;
}

const jsonStr = '{"name": "Alex", "age": 28}';
const person: Person = JSON.parse(jsonStr);

console.log(person.age); // פלט: 28

import "reflect-metadata";
import { plainToClass } from "class-transformer";
import { Person } from "./person";

const jsonStr = '{"name": "Mia", "age": 22}';
const person = plainToClass(Person, JSON.parse(jsonStr));

console.log(person instanceof Person); // פלט: true
console.log(person.name); // פלט: Mia

import Ajv from "ajv";

const ajv = new Ajv();

const schema = {
  type: "object",
  properties: {
    name: { type: "string" },
    age: { type: "number" },
  },
  required: ["name", "age"],
  additionalProperties: false,
};

const validate = ajv.compile(schema);
const valid = validate({ name: "Tom", age: 24 });

console.log(valid); // פלט: true
if (!valid) console.log(validate.errors);