A barebones function for getting a SHA256 hash of a string using the browser's native crypto module.
import sha from "simple-hash-browser";
sha("String To Hash Beyond Recognition");
// returns a Promise
sha("This other string").then(hash => {console.log(hash)});
// "0d5a0597790745345842b61356016e3b24e83a7e6b0266618180c3a864bf25f1"