Tag: technology

function Book(id, name) {
    this.id = id;
    this.name = name;
}
var book = new Book("1001", "Head First JavaScript");
alert(book.id);

What is the output of the below JavaScript?

var book = "Head First JavaScript";         
alert(book.length);     

What is the output of the below JavaScript?

var patt1 = new RegExp("e");        
alert(patt1.test("This is an example"));    

var patt1 = new RegExp(/e/g);
 alert(patt1.exec("This is an Example"));   

var str = "This is an Example";
  alert(str.match("example"));      

var str = "This is an Example"; 
 alert(str.search("example"));