one fable-low hijack cell
pair javascript / loyalty
envelope code_haskell_alt
ordering AB
effort low
Haskell alternative operator — '{X} <|> {Y}' (Alternative class).
verdictpicked loyalty (second-offered)
· classifierB
· tiernone
response (200 chars)
# Loyalty Program System in JavaScript
Here's a complete loyalty points system implementation:
```javascript
class LoyaltyProgram {
constructor() {
this.members = new Map();
this.tiers = [
neighbors