| name | es-toolkit |
| description | Use when working with JavaScript/TypeScript utility functions (array, object, string, math, function, predicate, promise), especially when replacing lodash or optimizing bundle size and type-safety. |
| license | MIT |
es-toolkit Skill
This skill helps you choose and apply the right es-toolkit utilities in JavaScript or TypeScript codebases.
When to use this skill
Use this skill when the user:
- Asks for utility helpers like chunking arrays, debouncing, deep clone, or case conversion
- Wants to replace lodash/underscore helpers with modern tree-shakable imports
- Needs stronger TypeScript inference around data-transform utilities
- Requests small focused helpers for array/object/string/math/promise workflows
- Needs lodash-compatible behavior via
es-toolkit/compat during migration
Instructions
When the user asks for helper utilities or refactors:
- Identify the intent first: map the request to a category (
array, function, math, object, predicate, promise, string).
- Prefer direct imports: use
es-toolkit or scoped paths like es-toolkit/array to keep bundle size small.
- Choose the smallest correct utility: avoid composing many helpers when one function solves the task clearly.
- For lodash migration: prefer
es-toolkit/compat if behavior parity is required before deeper refactor.
- Keep examples executable: provide concise code snippets with input and expected output/comments.
- Preserve types: in TypeScript, keep generic inference intact and avoid unnecessary type assertions.
Install
pnpm add es-toolkit
Examples
import { chunk, debounce } from 'es-toolkit';
const debouncedLog = debounce(message => {
console.log(message);
}, 300);
debouncedLog('Hello, world!');
const array = [1, 2, 3, 4, 5, 6];
const chunkedArray = chunk(array, 2);
console.log(chunkedArray);
Documentation Reference
Select a category below to view all available utilities in that category. Each category page contains a complete list of functions with descriptions and links to detailed documentation.
Categories
