What is the output? var one; var two = null; console.log(one == two, one === two);

Which is NOT a valid way to write a loop that will iterate over the values in the array in variable 'myArray'?

An (inner) function enjoys access to the parameters and variables of all the functions it is nested in. This is called:

(function() { 'use strict'; foo = 'bar'; })();

The expression (typeof NaN === 'number') evaluates to:

What is the value of x? var x = typeof NaN;

How can you remove spaces, tabs and line terminator characters around the string? String is defined like this: let string = 'hey'

Select the statement that will return truthy value. Array let a = [1,2,3,4] is defined

Which statement returns false. First line in file is: var a = true; b = false; This code will throw an error delete a === b

What will be logged to the console? console.log([0,0,0].fill(1,1) RangeError SyntaxError EvalError

Select statements that will return true. Object is defined: let a = {a:1};