CoreFunc

CoreFunc is a lightweight collection of core utility functions for everyday tasks, ranging from simple one-liners to more advanced helpers. Designed to be predictable, composable, and dependency-free.

➡️ CoreFunc.GitHub.io Documentation ⬅️

🎯 Purpose

• 🔍 Iterate, check, sort, and search through primitives, arrays, and objects
• 🧩 Manipulate, convert, and generate data with simple, predictable utilities

📦 What

• 🪶 A small, dependency-free utility library for everyday data work
• ⚡ Built for ECMAScript Modules (ESM) with first-class TypeScript support
• 📄 .js and .ts files included - use whatever fits your workflow
• 🛡️ No prototype extensions - zero risk of prototype pollution
• 🚫 No dependencies

💡 Why

• ✂️ Loosely coupled functions - copy what you need, skip the rest
• 🌳 Tree-shaking by default - no dead-code hunting or bundler tricks

TypeScript

import { arraySortBubble } from "@corefunc/corefunc/array/sort/bubble";
arraySortBubble([3, 1, 2]); // [1, 2, 3]

ECMAScript Module

import { arraySortBubble } from "@corefunc/corefunc/array/sort/bubble.js";
arraySortBubble([3, 1, 2]); // [1, 2, 3]

import { checkIsSame } from "@corefunc/corefunc/check/is-same.js";
(NaN === NaN) // false
checkIsSame(NaN, NaN); // true
(0 === -0) // true
checkIsSame(0, -0); // false

import { dateIsLeapYear } from "@corefunc/corefunc/date/is-leap-year.js";
dateIsLeapYear(2024); // true

import { generateInteger } from "@corefunc/corefunc/generate/integer.js";
generateInteger(1, 100);

import { textCaseKebab } from "@corefunc/corefunc/text/case/kebab.js";
textCaseKebab("helloWorld"); // hello-world

import { stringGetCount } from "@corefunc/corefunc/string/get/count.js";
stringGetCount("abc"); // 3
stringGetCount("👨‍👩‍👧‍👦"); // 1

AI Reviewer: "Answer is not accepted. You are using [...text].length instead of text.length to count characters in a string. This is the length of an array."

Me: "But text.length returns 7 for the '👨‍👩‍👧‍👦' emoji because it counts UTF-16 code units, not human-perceived characters."

AI Reviewer: "I understand. However, the answer is not accepted. You failed the test."

Me: 🤦‍♂️