Closer to the Metal

Regular JS arrays ([]) are flexible but heavy objects. When you need to process millions of numbers (video, audio, 3D graphics), they become too slow. This is where TypedArrays come in.

1. How they work

Typed arrays reserve a " chunk " of memory of a fixed size and store data there purely in binary form.

2. Main Types

• Uint8Array: Numbers from 0 to 255. 1 byte per number. Ideal for images.
• Int32Array: 32-bit integers (4 bytes).
• Float64Array: High precision for mathematical calculations.

let buffer = new Uint8Array(2); 
buffer[0] = 255;
buffer[1] = 256; // An "overflow" wrap-around occurs, it becomes 0.