jsoneo/es/utils/encode.js

A powerful JSON enhancement library that supports all JSON primitives, Date, RegExp, Symbol, Functions, Map, Set, TypedArray and much more! Almost everything in JavaScript.

export function stringToBase64(str) {
  // Node.js environment
  if (typeof Buffer !== 'undefined') {
    return Buffer.from(str, 'utf-8').toString('base64');
  }
  // Browser environment
  return btoa(unescape(encodeURIComponent(str)));
}
export function base64ToString(base64) {
  // Node.js environment
  if (typeof Buffer !== 'undefined') {
    return Buffer.from(base64, 'base64').toString('utf-8');
  }
  // Browser environment
  return decodeURIComponent(escape(atob(base64)));
}

/**
 * Escapes special characters in a string for use in a regular expression.
 *
 * @param regExp - The string to escape
 *
 * @returns The escaped string that can be safely used in a RegExp constructor
 */
export function escapeRegExp(regExp, options) {
  const {
    escapeTwice = false,
    format
  } = options ?? {};
  const content = typeof regExp === 'string' ? regExp : regExp.source;
  // $& Indicates the entire matched string
  const result = content.replace(/[.*+?^${}()|[\]\\]/g, escapeTwice ? '\\\\$&' : '\\$&');
  return format ? format(result) : result;
}
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