import { camelCase, // userProfileData pascalCase, // UserProfileData kebabCase, // user-profile-data snakeCase, // user_profile_data titleCase, // User Profile Data sentenceCase, // User profile data constantCase, // USER_PROFILE_DATA dotCase, // user.profile.data pathCase, // user/profile/data headerCase, // User-Profile-Data capitalCase, // User Profile Data noCase, // user profile data upperCase, // USER PROFILE DATA lowerCase, // user profile data upperCaseFirst, // User profile data lowerCaseFirst, // user Profile Data swapCase, // uSER pROFILE dATA isUpperCase, // Boolean check isLowerCase, // Boolean check } from "text-case"; // Transform any text format const input = "user_profile_data"; console.log(camelCase(input)); // "userProfileData" console.log(pascalCase(input)); // "UserProfileData" console.log(kebabCase(input)); // "user-profile-data" console.log(titleCase(input)); // "User Profile Data"

import { camelCase, snakeCase } from "text-case"; // Custom word splitting camelCase("XMLHttpRequest", { splitRegexp: /([a-z])([A-Z])/g, }); // "xmlHttpRequest" // Custom character stripping snakeCase("hello@world.com", { stripRegexp: /[@.]/g, }); // "hello_world_com" // Custom transformations camelCase("api-v2-endpoint", { transform: (word, index) => { if (word === "api") return "API"; if (word === "v2") return "V2"; return word; }, }); // "APIV2Endpoint"

import { camelCase, snakeCase, kebabCase } from "text-case"; // Convert database columns to JavaScript const dbUser = { first_name: "John", last_name: "Doe", email_address: "john@example.com", }; const jsUser = Object.fromEntries( Object.entries(dbUser).map(([key, value]) => [camelCase(key), value]), ); // { firstName: "John", lastName: "Doe", emailAddress: "john@example.com" } // Generate API endpoints const createEndpoint = (resource, action) => `/api/${kebabCase(resource)}/${kebabCase(action)}`; createEndpoint("UserProfile", "GetById"); // "/api/user-profile/get-by-id"

import { pascalCase, camelCase } from "text-case"; // Component generation const createComponent = (name) => `  import React from 'react';   interface ${pascalCase(name)}Props {  ${camelCase(name)}Data?: any;  }   export const ${pascalCase(name)}: React.FC<${pascalCase(name)}Props> = ({ ${camelCase(name)}Data }) => {  return <div>{/* ${pascalCase(name)} component */}</div>;  }; `; console.log(createComponent("user_profile_card"));

import { camelCase } from "text-case"; // Convert CSS properties const cssToJS = (cssText) => { return cssText.replace( /([a-z])-([a-z])/g, (match, p1, p2) => p1 + p2.toUpperCase(), ); }; const styles = { backgroundColor: "#fff", // from background-color fontSize: "16px", // from font-size marginTop: "10px", // from margin-top };

import { constantCase, camelCase } from "text-case"; // Environment variables to config object const envToConfig = (envVars) => { return Object.fromEntries( Object.entries(envVars) .filter(([key]) => key.startsWith("APP_")) .map(([key, value]) => [camelCase(key.replace("APP_", "")), value]), ); }; const env = { APP_DATABASE_URL: "postgres://...", APP_API_SECRET_KEY: "secret123", APP_MAX_FILE_SIZE: "10MB", }; const config = envToConfig(env); // { databaseUrl: "postgres://...", apiSecretKey: "secret123", maxFileSize: "10MB" }

import express from "express"; import { kebabCase } from "text-case"; const app = express(); // Auto-generate kebab-case routes const createRoute = (name, handler) => { app.get(`/${kebabCase(name)}`, handler); }; createRoute("getUserProfile", (req, res) => res.json({ profile: {} })); // Creates route: GET /get-user-profile

// pages/[...slug].js import { pathCase } from "text-case"; export async function getStaticPaths() { const pages = ["About Us", "Contact Form", "Privacy Policy"]; return { paths: pages.map((page) => ({ params: { slug: pathCase(page).split("/") }, })), fallback: false, }; }

import { pascalCase } from "text-case"; // Dynamic component registration const components = ["UserCard", "ProductList", "CheckoutForm"]; components.forEach((name) => { app.component(pascalCase(name), () => import(`./components/${name}.vue`)); });

// ❌ Imports entire library (~8KB) import { camelCase } from "text-case"; // ✅ Imports only camelCase (~450B) import { camelCase } from "text-camel-case";

// Split on camelCase and PascalCase boundaries const camelSplit = { splitRegexp: /([a-z])([A-Z])/g }; // Preserve numbers as separate words const numberSplit = { splitRegexp: /([a-zA-Z])(\d)/g }; // Strip special characters const stripSpecial = { stripRegexp: /[^a-zA-Z0-9]/g }; // Custom acronym handling const acronymTransform = { transform: (word) => { const acronyms = ["API", "URL", "HTTP", "JSON", "XML"]; return acronyms.includes(word.toUpperCase()) ? word.toUpperCase() : word; }, };