JavaScript Quiz

JavaScript Quiz

1.Which of the following is not an event in JavaScript? onunload onremove ondblclick onchange 2.True or False-"All variables are of object type in JavaScript". True False 3.What will be o/p of "2"+2+1 JavaScript statement? 5 221 23 Error 4.What Built-in javascript function back() does? Returns to previous function Closes the specified window Returns to the previous URL No such function 5. A ________ box allows the user to enter input by providing a text box. confirm prompt alert drop 6.Which of the following looping structure is not available in JavaScript ? for while do-while foreach 7.The Undefined value Javascript means the variable used in code doesn't exist or is not assigned any value or the property doesn't exist.Ture or False? Ture False 8.How to disable an HTML object using JavaScript? document.getElementById("myObject").visible = false; document.getElementById("myObject").disabled = true; document.getElementById("myObject").visibility = false; document.getElementById("myObject").disable = true; 9.It is easy to manipulate cookies in JavaScript with the document.cookie property.True/False? True False 10.What will be o/p of 2+1+"3" JavaScript statement? 213 6 33 Error