Как печатать на экран в JavaScript
console.log("Hello World!");
alert("Console has been updated.");
c00lhawk607
console.log("Hello World!");
alert("Console has been updated.");
console.log("Who's Joe?")
console.log(a); // write to the browser console
document.write(a); // write to the HTML
alert(a); // output in an alert box
confirm("Really?"); // yes/no dialog, returns true/false depending on user click
prompt("Your age?","0"); // input dialog. Second argument is the initial value
console.log(a); // write to the browser console
document.write(a); // write to the HTML
alert(a); // output in an alert box
confirm("Really?"); // yes/no dialog, returns true/false depending on user click
prompt("Your age?","0"); // input dialog. Second argument is the initial value