Aaaah!

tagsAndProxies.js

// higher-order function that returns a tag function (closure) that replaces variables in a template literal with the value of "word"
const wordReplacer = (word) => (strings, ...values) => {
  return strings.join(word)
}

// proxy handler that will intercept "get" and return a tag function
const proxyHandler = {
  get(_, prop) {
  	return wordReplacer(prop)
  },
};

const replaceWith = new Proxy({}, proxyHandler);
const Aaaah = replaceWith['Aaaah!']

const replaced = Aaaah`"${'Hello'}" said Bob to Alice.\n"${'Hi Bob'}" responded Alice.`
console.log(replaced)

// "Aaaah!" said Bob to Alice.
// "Aaaah!" responded Alice.