+ - * / %
Math.sin( ), Math.cos( ), Math.log( ), Math.exp( ), Math.sqrt( ), Math.floor( )
var x;
var x = 0;
x = x + 1;
var x; x = 17;
"hi"
'hi'
\"
\'
\\
\n
"a" + "b"
ab
"foobar"[3]
b
"foobar".length
6
typeof(43*7)
Number
String(42)
Number("42")
alert("Hello World!");
var n = alert("Enter your name");