@c_s_v_s_subrahmanyam/string-utils/src/utils/transformations.js

A comprehensive utility library for advanced string operations.

// String transformations
module.exports = {
    toUpperCase: (str) => str.toUpperCase(),
  
    toLowerCase: (str) => str.toLowerCase(),
  
    reverse: (str) => str.split('').reverse().join(''),
  
    concatenate: (...args) => args.join(''),
  
    replace: (str, search, replace) => str.split(search).join(replace),
  
    trim: (str) => str.trim(),
  
    padStart: (str, length, char = ' ') => str.padStart(length, char),
  
    padEnd: (str, length, char = ' ') => str.padEnd(length, char),
  
    caseConversion: (str, targetCase) => {
      if (targetCase === 'camel') {
        return str
          .toLowerCase()
          .replace(/[^a-zA-Z0-9]+(.)/g, (_, char) => char.toUpperCase());
      }
      if (targetCase === 'snake') return str.replace(/\s+/g, '_').toLowerCase();
      if (targetCase === 'kebab') return str.replace(/\s+/g, '-').toLowerCase();
      return str;
    },
  };

  module.exports = {
    ...module.exports,
  
    // Encoding and Decoding
    encodeBase64: (str) => Buffer.from(str).toString('base64'),
  
    decodeBase64: (str) => Buffer.from(str, 'base64').toString('utf-8'),
  
    encodeURI: (str) => encodeURIComponent(str),
  
    decodeURI: (str) => decodeURIComponent(str),
  
    // Padding
    leftPad: (str, length, char = ' ') => str.padStart(length, char),
  
    rightPad: (str, length, char = ' ') => str.padEnd(length, char),
  
    centerPad: (str, length, char = ' ') => {
      const totalPadding = length - str.length;
      const left = Math.floor(totalPadding / 2);
      const right = totalPadding - left;
      return char.repeat(left) + str + char.repeat(right);
    },
  };