Index_V

V

valid XML, 607 “608

value, of variables , 47

valueOf( ) method, 145 “146

var keyword, 28 “29, 47 “48, 69

var object, HTMLElement, 902 “903

<var>, 902

variable scope

event handlers and, 72 “73

execution context and, 73 “74

functions and, 70 “72

overview of, 70

variables

combining operators with, 35

conditional compilation, 649

debuggers watching, 706

declaring, 47 “48, 69 “70

execution, 73 “74

identifiers, 47, 67 “69

mask outs, 119 “120

overview of, 28 “29, 47 “48

scope, 70 “73

static, 124 “125

types of, 47

values, 47

variadic functions, 130

vectors, 62. See also arrays

Venkman debugger, 707

version detection, JavaScript, 541 “542

visibility property, CSS, 511

visual (Screen object), browser detection, 544 “548

void operator, 91 “92