Types
Types. Are. Important.
I'm working with a codebase littered with weights. It's written in TypeScript, but weight unit is stored as a "string". 👎
Result? The code has 120 references to weight, all with varying formats:
lb.
lbs.
pound
kg
Kg
Kilo
😬
Solution: A union type.
Now I'm just wondering: How many bugs are in this code because the conditional is
if (weightUnit === "lb.")
when it should be
if (weightUnit === "lb")
Types make this mistake impossible. 👍