Answers for "javascrip alert"

js alert

// Alert used to display a message to the user.
alert("Hello, World!"); // Displays Hello, World! to the user.
// You can also use:
window.alert("Hello, World!"); // Also displays Hello, World! to the user.

js alert

alert("Hello! I am an alert box!!");

java script alert

alert("This is an alert !");

how to make an alert on a page

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