Small Ideas That Solve Real Problems

Measuring code execution time requires manual Date.now() calculations.

Use console.time() and console.timeEnd() to measure execution time easily.

Simple, accurate performance measurement without manual timestamp math.

Debugging arrays of objects with console.log() produces hard-to-read nested output that requires expanding each item.

Use console.table() to display arrays and objects in a clean, sortable table format in your browser DevTools.

Instantly see all data in a structured table — sortable by column, easy to scan, no expanding needed.

Boolean variables named "active", "permission", or "valid" are ambiguous — is it a status, a check, or an action?

Prefix booleans with is, has, can, should, or was. They read like questions: isActive, hasPermission, canEdit.

Code reads like English. "if (isActive && hasPermission)" is instantly understandable vs "if (active && permission)".

Code like "if (status === 3)" or "timeout = 86400" is meaningless to anyone reading it — including your future self.

Replace magic numbers with named constants. The name explains the purpose, and changing the value only requires one edit.

Self-documenting code, fewer bugs when values change, and easier code reviews.

Deep nesting of if/else blocks makes code hard to follow — 3+ levels of indentation is a code smell.

Return early for edge cases and errors at the top of your function. The main logic stays flat at the base level.

Reduces nesting from 3-4 levels to 0-1. Each condition is handled and exited immediately — much easier to read.

Messages like "Fix bug" or "Update file" are useless 6 months later when you need to understand what changed and why.

Write commit messages that explain the reason for the change. The diff shows WHAT changed — the message should explain WHY.

Makes git blame and git log actually useful. Your team (and future you) will thank you during debugging.