Listening for pressing keys from string in correct order and giving callback

onword.min.js

onword={reg:{},set:(d,e,f)=>{f||(d=d.toLowerCase()),document.addEventListener("keypress",g=>{onword.listen(d,g,e,f)}),onword.reg[d]=0},listen:(d,e,f,g)=>{if(!g)var h=e.key.toLowerCase();else var h=e.key;if(d[onword.reg[d]]&&h===d[onword.reg[d]])onword.reg[d]++;else{onword.reg[d];onword.reg[d]=0}onword.reg[d]>=d.length&&(f(),onword.reg[d]=0)}};

// onword.set(): Add new KeyPress-listener
// @param d* {string} - String we're listening for
// @param e* {function} - Callback
// @param f {bool} - Case-sensitive
onword.set("Hello World", ()=>{alert("Welcome to JavaScript!");})

Very nice