Unescape HTML special characters

JavaScript version

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

TypeScript version

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