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- Fix syntax errors in skills markdown files (.github/skills, .opencode/skills) - Change typescript to tsx for code blocks with JSX - Replace ellipsis (...) in array examples with valid syntax - Separate CSS from TypeScript into distinct code blocks - Convert JavaScript object examples to valid JSON in docs - Fix enum definitions with proper comma separation
530 B
530 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Use Set/Map for O(1) Lookups | LOW-MEDIUM | O(n) to O(1) | javascript, set, map, data-structures, performance |
Use Set/Map for O(1) Lookups
Convert arrays to Set/Map for repeated membership checks.
Incorrect (O(n) per check):
const allowedIds = ["a", "b", "c"];
items.filter((item) => allowedIds.includes(item.id));
Correct (O(1) per check):
const allowedIds = new Set(["a", "b", "c"]);
items.filter((item) => allowedIds.has(item.id));