Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] validation, adding to HTML forms value property 2nd button element checkbox element file element FileUpload object, security restrictions on form elements Hidden element Option object radio element text element Textarea object valueOf( ) method 2nd 3rd Date object Object class objects, converting to numbers values data values in arrays function literals, embedding in programs functions as manipulating data values by null property, in object literals var statement 2nd varargs functions variable arity functions variable name resolution 2nd variable-length arguments list (Arguments object) variables as object properties execution contexts global object local variables (call object) case-sensitivity counter declaring 2nd garbage collection global identifiers in for/in loops initializing, with statements and JavaClass names local loop, initializing, testing, and updating null values in persistent and private scope 2nd global variables local variables no block scope undefined vs. unassigned with statement and sharing among multiple frames and windows typing unassigned vs. undefined undefined values variadic functions VBScript communication with JavaScript specifying as scripting language for web browser vector-graphics technologies Flash Java SVG VML versions browser 2nd CSS stylesheets JavaScript | (vertical bar) alternation in regular expressions 2nd bitwise OR operator 2nd |= (assignment) operator 2nd || (logical OR) operator 2nd || options in CSS view property (UIEvent) 2nd visibility cookies windows visibility attributes 2nd overflow and clip Visual Basic Scripting Edition VML (Vector Markup Language) 2nd drawing pie chart with JavaScript void operator 2nd 3rd explicitly specifying undefined return value |