Object utility: create, parse and profile
/*
JavaScript Application Cookbook
By Jerry Bradenbaugh
Publisher: O'Reilly
Series: Cookbooks
ISBN: 1-56592-577-7
*/
<HTML>
<HEAD>
<TITLE>objects.js Example</TITLE>
<STYLE type="text/css">
<!--
td { font-family: courier new; font-size: 14}
-->
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
// objects.js
// This function creates new objects
function makeObj() {
if (arguments.length % 2 != 0) {
arguments[arguments.length] = "";
}
for ( var i = 0; i < arguments.length; i += 2 ) {
this[arguments[i]] = arguments[i + 1] ;
}
return this;
}
// This function recursively inspects passed objects
// and stores property information in a string. This string is
// returned after there are no more object properties to examine
function parseObj(obj) {
objCount = 0;
var objStr = '';
for (prop in obj) {
objStr += '<TR><TD>Property: </TD><TD><B>' + prop + '</B></TD><TD>Type: </TD><TD><B>' + typeof(obj[prop]) +
'</B></TD><TD>Value: </TD><TD><B>' + obj[prop] + '</B></TD></TR>';
if (typeof(obj[prop]) == "object") {
objStr += parseObj(obj[prop]);
}
}
return objStr;
}
// This function displays object properties accumulated from parseObj()
function objProfile() {
var objTable = '<TABLE BORDER=2 CELLSPACING=0><TR><TD><H1>Object Profile</H1></TD></TR>';
for (var i = 0; i < arguments.length; i++) {
objTable += '<TR><TD><BR><BR><H2><TT>' + (i + 1) + ') ' + arguments[i] + '</H2></TD></TR>';
objTable += '<TR><TD><TT><TABLE CELLPADDING=5>' + parseObj(eval(arguments[i])) + '</TABLE></TD></TR>';
}
objTable += '</TABLE><BR><BR><BR>';
return objTable;
}
</SCRIPT>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!--
function plainOlderObject() {
this.stuff = 'stuff';
this.that = 'that';
this.theOther = 'theOther';
return this;
}
function plainOldObject() {
this.name = 'the object name';
this.numba = 1000;
this.objInherit = new makeObj('propertyOne', 'thisProperty', 'propertyTwo', 'thatProperty', 'propertyThree', 'theOtherProperty');
return this;
}
var someObject = new plainOldObject();
document.write(objProfile('someObject', 'self.location'));
//-->
</SCRIPT>
</BODY>
</HTML>
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