☛ What is the value of foo?

var foo = 10 + '20';

Question: How would you make this work?

add(2, 5); // 7

add(2)(5); // 7

☛ What value is returned from the following statement?

"i'm a lasagna hog".split("").reverse().join("");

☛ What is the value of window.foo?

( window.foo || ( window.foo = "bar" ) );

☛ What is the outcome of the two alerts below?

var foo = "Hello";

(function() {

var bar = " World";

alert(foo + bar);

})();

alert(foo + bar);

☛ What is the value of foo.length?

var foo = [];

foo.push(1);

foo.push(2);

☛ What is the value of foo.x?

var foo = {n: 1};

var bar = foo;

foo.x = foo = {n: 2};