Native JavaScript or ES6 way to encode and decode HTML entities?

Question

Is there a native way to encode or decode HTML entities using JavaScript or ES6? For example, < would be encoded as <. There are libraries like html-entities for Node.js but it feels like there should be something built into JavaScript that already handles this common need.

Answer 1

A nice function using es6 for escaping html:

const escapeHTML = str => str.replace(/[&<>'"]/g,    tag => ({       '&': '&amp;',       '<': '&lt;',       '>': '&gt;',       "'": '&#39;',       '"': '&quot;'     }[tag])); 

Answer 2

There is no native function in the JavaScript API that convert ASCII characters to their "html-entities" equivalent. Here is a beginning of a solution and an easy trick that you may like