interface RobotData {
name: string;
age: number;
city: string;
}
const jsonData: RobotData = { name: "R2D2", age: 86, city: "New York" };
/**
* Converts a JSON object to an ArrayBuffer
*/
function jsonToBuffer(obj: RobotData): ArrayBuffer {
// 1. Serialize to string
const str: string = JSON.stringify(obj);
// 2. Encode to UTF-8 Uint8Array
const encoder: TextEncoder = new TextEncoder();
const bytes: Uint8Array<ArrayBuffer> = encoder.encode(str);
// 3. Return the underlying buffer
return bytes.buffer;
}
const buffer: ArrayBuffer = jsonToBuffer(jsonData);
console.log(buffer);
/*
run:
ArrayBuffer {
[Uint8Contents]: <7b 22 6e 61 6d 65 22 3a 22 52 32 44 32 22 2c 22 61 67 65 22 3a 38 36 2c 22 63 69 74 79 22 3a 22 4e 65 77 20 59 6f 72 6b 22 7d>,
byteLength: 42
}
*/
