Which of the following Array methods in JavaScript runs a function on every item in the Array and collects the result from previous calls, but in reverse?

What would be the value of 'ind' after execution of the following code? var msg='Welcome to ExpertRating' var ind= msg.substr(3, 3)

Which are true regarding the 'this' keyword in JavaScript?

Which will list the properties of a JavaScript object?

Consider the following JavaScript validation function: function ValidateField() { if(document.forms[0].txtId.value == '' '') {return false;} return true; } Which will call the function as soon as the user leaves the field?

In an HTML page, the form tag is defined as follows:

What's the output? function test() { return 'Hello'; } alert(test());

Value of document.referrer if a user opens the page from a bookmark?

What's the output? function a() { alert('Outer function!'); return function(){ alert('Inner function!'); }; } var a = a(); a();

Result of type of (Infinity); statement?

Which event object properties can you use to check whether that event is allowed to prevent default behavior or not?