format-strings-ninja

🥷 format-strings-ninja

Format your strings like a ninja — fast, precise, and dependency-free.

• ✅ Works in TypeScript and JavaScript
• ✅ Supports Node.js (CommonJS) and browsers (ES2015)
• ✅ No dependencies
• ✅ Tree-shakeable exports

import { format } from "format-strings-ninja";

format.toSlug("Hello World!");              // "hello-world"
format.titleSmart("the lord of the rings"); // "The Lord of the Rings"

Installation

npm i format-strings-ninja
# or
pnpm add format-strings-ninja
# or
yarn add format-strings-ninja

Usage

In TypeScript / ESM

import { format } from "format-strings-ninja";

console.log(format.camelCase("Hello brave world")); // "helloBraveWorld"
console.log(format.toTitleCase("the quick brown fox")); // "The Quick Brown Fox"

In Node (CommonJS)

const format = require("format-strings-ninja");

console.log(format.toSlug("Hello World!")); // "hello-world"
console.log(format.capitalize("ninja"));    // "Ninja"

In Browser (bundler or CDN)

<script type="module">
  import { format } from "https://esm.sh/format-strings-ninja";
  console.log(format.randomCase("hello ninja world"));
</script>

🧩 API — format

🔤 Basics

Function	Example	Output
removeAccents(str)	"canción"	"cancion"
normalizeWhitespace(str)	" Hello world "	"Hello world"
reverse(str)	"ninja"	"ajnin"
stripNonAscii(str)	"héllö 🌎"	"hell "

🧠 Case & Titles

Function	Example	Output
capitalize(str)	"ninja"	"Ninja"
toTitleCase(str)	"the quick brown fox"	"The Quick Brown Fox"
toSentenceCase(str)	"hello world"	"Hello world"
titleSmart(str)	"the lord of the rings"	"The Lord of the Rings"
nameCase(str)	"jUAN pérez roJas"	"Juan Pérez Rojas"

🪶 Slug & Cases

Function	Example	Output
toSlug(str)	"Hello World!"	"hello-world"
kebabCase(str)	"Hello Ninja World"	"hello-ninja-world"
snakeCase(str)	"Hello Ninja World"	"hello_ninja_world"
camelCase(str)	"Hello ninja world"	"helloNinjaWorld"

✂️ Trim & Pad

Function	Example	Output
truncate(str, len)	"This text is too long", 10	"This te..."
limitWords(str, count)	"This is an example text", 3	"This is an..."
pad(str, length, char)	"42", 6, "0"	"002420"
wrap(str, width)	"This text is too long", 8	"This text\nis too\nlong"

🧹 Clean & Count

Function	Example	Output
cleanHTML(html)	"<p>Hello <b>world</b></p>"	"Hello world"
countWords(str)	"The ninja writes code"	4
countOccurrences(str, sub)	"banana", "na"	2

🎭 Fun & Stylized

Function	Example	Output
randomCase(str)	"ninja"	"nInJa" (random)
alternatingCase(str)	"ninja"	"NiNjA"
stylize(str, "upper")	"ninja"	"NINJA"
stylize(str, "lower")	"NINJA"	"ninja"
stylize(str, "leet")	"hacker"	"h4ck3r"
stylize(str, "weird")	"ninja"	"ñïñjä"

⚙️ Scripts

npm run build-browser  # Build ES2015 modules for browsers (dist-browser/)
npm run build-node    # Build CommonJS modules for Node.js (dist-node/)
npm run build         # Build both browser and Node.js versions

🪪 License

MIT © Freddy Vincenty