Selectors in jQuery starts with __().

Which function is a synonym for on()?

What is the result of the expression Number("1") - 1 == 0?

Redux maintains the state of an entire application in a single immutable state tree.

Will the following JavaScript code work?

var squareOfTen = (function(x) {return x*x;}(10));

What is the purpose of the timing property in the window.performance object?

What will be the output?

var object = {     A: 1,     B: 2,     C: 3,     D: 4,      } object.E = function(){console.log(object.A)}; console.log(object.E());

When a user views a web page that contains JavaScript, which machine actually executes the script?

What is the purpose of the PerformanceTiming.navigationStart property?

Predict the output of the following code:

(function() {

 console.log('this is the start');

 setTimeout(function cb() {
   console.log('Callback 1: this is a message from the callback');
 });

 console.log('this is just a message');

 setTimeout(function cb1() {
   console.log('Callback 2: this is a message from the callback');
 }, 0);

 console.log('this is the end');

})();