How you can check Left mouse button click property?

document.addEventListener("mousedown", buttonpropertys, false);

Which represents when an Array object returns a string representing the array and its elements?

How do you locate the first X in a string variable named txt?

What value is returned when a Confirm box is cancelled?

What does the following line of code do?

Which statement is True for Behavioral design patterns?

Consider the following variable assignments: var a = 1; var b = 2; var r = a | b; The value of r is:

console.log(3%2&1); The console displays:

A javascript variable prefixed with a $ is:

function b(x, y, a) { arguments[2] = 10; alert(a); } b(1, 2, 3); What is alerted?

Right way to combine two arrays into a new array? var a = ['a', 'b', 'c']; var b = ['d', 'e', 'f'];