Unescape HTML special characters

JavaScript

const unescape = (str) => str
  .replace(/&amp;/g, '&')
  .replace(/&lt;/g, '<')
  .replace(/&gt;/g, '>')
  .replace(/&#0*39;/g, "'")
  .replace(/&quot;/g, '"')

TypeScript

const unescape = (str: string): string => str
  .replace(/&amp;/g, '&')
  .replace(/&lt;/g, '<')
  .replace(/&gt;/g, '>')
  .replace(/&#0*39;/g, "'")
  .replace(/&quot;/g, '"')