How to use variables as ES6 templates

template.js

'use strict';

const xml = '<foo>${data.bar}</foo>';

const template = (data, string) =>
  eval('((data) => `'+string+'`)('+JSON.stringify(data)+')');

const obj = {
  bar: `baz`
};

console.log(template(obj, xml));
// <foo>baz</foo>

This is useful when you want to treat strings as templates. For example, if you have an XML file that you want to read off the file system and process as though it were an ES6 template, the template() function makes that possible.