Answers for "javascript key press"

js when key is pressed

document.addEventListener("keypress", function(event) {
	// do stuff
});

html onkeypress

<input type="text" onkeypress="myFunction()">

if keypress javascript

// Create your variable and asssign it to your ID or Class in the document using document.querySelector.
let name = document.querySelector('#exampleInputEmail1');

// Now use your variable and add an event listener to it plus your keypress, event and styling
name.addEventListener("keypress", (event) => {
   name.style.border = "3px solid #28a745";
});