A collection of handy utility functions

This is a collection of utility functions that I keep using across different projects. I primarily created this package for myself so I don't have to re-implement certain functions over and over again, and to have a central place for testing them.

Install

npm install @flekschas/utils --save-dev

Usage

import { debounce } from '@flekschas/utils';

const hi = debounce(() => {
  console.log('I am debounced');
}, 250);

For cherry picking from a specific topic do:

import { debounce } from '@flekschas/utils/timing';

The utility functions are organized by the following topics:

• animation
• color
• conversion
• dom
• event
• functional-programming
• geometry
• map
• math
• object
• other
• sorting
• string
• timing
• type-checking
• vector

API

See API.md for the API docs.

Why yet another library for utility functions?

Generally, I follow four core goals with this collection:

1. Reusability
2. Performance
3. Simplicity
4. No dependencies

Whenever a function is reusable in a general context I might add it. When I add a function I will make sure it's performant. Finally, every function should be implement as simple as possible without harming performance. There's always a trade-off between performance and simplicity and my philosophy is the following: if the simple and complex implementation perform roughly the same, I choose the simple implementation. If a slightly more complex implementation is much faster I will favor the complex implementation. In any case, the API should always be simple and easy to understand! Finally, I want my utils functions to have no external and as little as possible internal dependencies. Why? No matter how large this collection becomes as a whole, if you only need one function, you should only ever have to bundle a single function and not a whole forrest of depending helper functions.