Pop-up window that displays a message to the user. The user must click the "OK" button to proceed.
A location within an HTML document that is invisibly "marked" with HTML tags. Links can point to this anchor, and take the user to specific locations within one HTML document
Any of the following symbols: * (multiply), +, -, / (divide), % (modulus), ++ (increment), -- (decrement), or - (negation). Arithmetic operators are used with variables or numeric values in an expression, to yield a mathematical result.
An object with a list of properties. In an array, the properties are named in numerical sequence.
The act of referring a value to a variable name; for example, purchases = 10.
One of the following symbols: =, +=, -=, *=, /=, or %=. All but = will perform the indicated arithmetic on the current variable value and its assigned value.
An HTML structure that sets a particular parameter value for a given HTML tag.