| 123456789101112131415161718192021 | /*! * pascalcase <https://github.com/jonschlinkert/pascalcase> * * Copyright (c) 2015, Jon Schlinkert. * Licensed under the MIT License. */function pascalcase(str) {  if (typeof str !== 'string') {    throw new TypeError('expected a string.');  }  str = str.replace(/([A-Z])/g, ' $1');  if (str.length === 1) { return str.toUpperCase(); }  str = str.replace(/^[\W_]+|[\W_]+$/g, '').toLowerCase();  str = str.charAt(0).toUpperCase() + str.slice(1);  return str.replace(/[\W_]+(\w|$)/g, function (_, ch) {    return ch.toUpperCase();  });}module.exports = pascalcase;
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