Vdash Making A New Dash -p3- __top__ May 2026

const EventBus = { events: {}, on(event, callback) ... , emit(event, data) ... , off(event, callback) ... }; 2.1 Canvas vs DOM | Feature | Canvas | DOM | |---------|--------|-----| | Complex graphics | ✅ Excellent | ❌ Slow | | Text rendering | ⚠️ Manual | ✅ Easy | | Dynamic elements | ❌ Redraw all | ✅ Selective | | Performance | ✅ GPU accelerated | ⚠️ Layout thrashing |

const speedFilter = new LowPassFilter(0.15); let smoothSpeed = speedFilter.filter(rawSpeed); For low-frequency data (e.g., 10Hz): VDash Making A New Dash -P3-

record(data) if (!this.isRecording) return; this.buffer.push( timestamp: Date.now(), ...data ); const EventBus = { events: {}, on(event, callback)

const utterance = new SpeechSynthesisUtterance(message); utterance.rate = 1.2; utterance.pitch = 1.0; synth.speak(utterance); let smoothSpeed = speedFilter.filter(rawSpeed)

// modules/telemetry.js VDash.module('telemetry', data: speed: 0, rpm: 0, gear: 'N' , init: function() this.subscribe('data:update', this.updateTelemetry); , updateTelemetry: function(data) this.data.speed = data.Speed; this.data.rpm = data.RPM; this.render(); , render: function() // Update DOM elements ); Use a central event bus for decoupled communication:

requestAnimationFrame(renderLoop);

let lastSpeed = 0, lastTime = 0; function predictSpeed() const now = performance.now(); const dt = (now - lastTime) / 1000; const acceleration = (currentSpeed - lastSpeed) / dt; const predicted = currentSpeed + acceleration * 0.05; // 50ms ahead lastSpeed = currentSpeed; lastTime = now; return predicted;