@nixat/cipher

A lightweight utility library for string manipulation and encryption in JavaScript and TypeScript.

Installation

npm install @nixat/cipher
# or
yarn add @nixat/cipher
# or
pnpm add @nixat/cipher

Usage

import { cipher } from '@nixat/cipher';

// Capitalize a string
const capitalized = cipher.capitalize('hello world'); // "Hello world"

// Convert to camelCase
const camelCased = cipher.camelCase('hello world'); // "helloWorld"

// Encrypt using Caesar cipher
const encrypted = cipher.caesarEncrypt('Hello', 3); // "Khoor"
const decrypted = cipher.caesarDecrypt('Khoor', 3); // "Hello"

API

String Validation

• isString(value: unknown): boolean - Checks if the provided value is a string

String Manipulation

• reverse(str: string): string - Reverses a string
• capitalize(str: string): string - Capitalizes the first letter of a string
• camelCase(str: string): string - Converts a string to camelCase
• snakeCase(str: string): string - Converts a string to snake_case
• truncate(str: string, length: number, ellipsis?: string): string - Truncates a string to a specified length
• pad(str: string, length: number, char?: string, padEnd?: boolean): string - Pads a string to a specified length
• countOccurrences(str: string, substring: string): number - Counts the occurrences of a substring in a string

Encryption

• caesarEncrypt(str: string, shift: number): string - Encrypts a string using a Caesar cipher
• caesarDecrypt(str: string, shift: number): string - Decrypts a string encrypted with a Caesar cipher
• vigenereEncrypt(str: string, key: string): string - Encrypts a string using a Vigenère cipher
• vigenereDecrypt(str: string, key: string): string - Decrypts a string encrypted with a Vigenère cipher
• hashCode(str: string): number - Generates a hash code for a string

HTML Utilities

• escapeHtml(str: string): string - Escapes HTML special characters in a string
• unescapeHtml(str: string): string - Unescapes HTML special characters in a string

License

MIT