Answers for "how to do an alert in javascript"

how to send an alert in javascript

//you can either do this:

function mousePressed() {
	//you can have any message
  alert("I'm the best");
}

//or you can do this:

function keyPressed() {
	//you can do any key
  if (keyCode === UP_ARROW) {
  	//and any message
    alert(number = random(0, 500));
  }
}

//or you can do an (if) statement

if(x > width) {
 	alert("yay you did it");
}

javascript alert

alert("string");

how to make alert in javascript

alert("Alert")

how to alert in javascript

alert("Message")

how to make an alert on a page

go to inspect element, go to console. type in 
alert("text")