alert("welcom to javascript. \n Happy coding");

alert("Line 1\nLine 2");

alert("Text you want on first line. \n Text you want on next line");

//can use back-to-back "\n" to add additional spacing between lines

 alert("Well I'm line 1 \nAnd I am a new line "); //new line in alert box

//alert function is used to prompt alert box 

//inside the quotes we write string to display 

//use \n to enter new line

alert("John\nJames\nSteve");

alert("My name is \n Undefined");