json-as/assembly/test.ts

The only JSON library you'll need for AssemblyScript. SIMD enabled

import { JSON } from ".";


@json
class Vec3 {
  x: f32 = 0.0;
  y: f32 = 0.0;
  z: f32 = 0.0;
}


@json
class Player {

  @alias("first name")
  firstName!: string | null;
  lastName!: string;
  lastActive!: i32[];
  // Drop in a code block, function, or expression that evaluates to a boolean
  @omitif((self: Player) => self.age < 18)
  age!: i32;

  pos!: Vec3 | null;
  isVerified!: boolean;
}

const player: Player = {
  firstName: "Jairus",
  lastName: "Tanaka",
  lastActive: [3, 9, 2025],
  age: 18,
  pos: {
    x: 3.4,
    y: 1.2,
    z: 8.3,
  },
  isVerified: true,
};

const serialized = JSON.stringify<Player>(player);
const deserialized = JSON.parse<Player>(serialized);

console.log("Serialized    " + serialized);
console.log("Deserialized  " + JSON.stringify(deserialized));