Put a Timeout on Every Network Call
Here is a bug that never shows up in testing: a service you call stops answering. It doesn't fail. It doesn't return an error. It just holds the connection open and says nothing. If your code has no t
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Posts tagged #javascript
Store Money as Integers, Not Floats
Here's a bug that shows up in almost every codebase that touches prices: 0.1 + 0.2 === 0.3 // false 0.1 + 0.2 // 0.30000000000000004 Floating point numbers are stored in binary, and most deci
Debounce vs Throttle: Pick the One That Matches the Question
Debounce and throttle both stop a function from firing too often, so people swap them around as if they're interchangeable. They answer different questions, and picking the right one gets easier once
Don't Catch Exceptions You Can't Handle
Empty catch blocks are quiet bugs. They swallow the failure, leave the program in a half-broken state, and make the next person wonder why nothing exploded when it should have. A catch is a promise: y
Return Early: Guard Clauses Flatten Your Code
Ever opened a function and found the actual logic buried five levels deep, under a staircase of if statements? That shape has a name, the "arrow anti-pattern", and the fix is usually simple: return ea