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41 File Name: 15.2.4.3.js
42 ECMA Section: 15.2.4.3 Object.prototype.valueOf()
44 Description: As a rule, the valueOf method for an object simply
45 returns the object; but if the object is a "wrapper"
46 for a host object, as may perhaps be created by the
47 Object constructor, then the contained host object
50 This only covers native objects.
52 Author: christine@netscape.com
56 var SECTION = "15.2.4.3";
57 var VERSION = "ECMA_1";
59 var TITLE = "Object.prototype.valueOf()";
61 writeHeaderToLog( SECTION + " "+ TITLE);
64 var myarray = new Array();
65 myarray.valueOf = Object.prototype.valueOf;
66 var myboolean = new Boolean();
67 myboolean.valueOf = Object.prototype.valueOf;
68 var myfunction = new Function();
69 myfunction.valueOf = Object.prototype.valueOf;
70 var myobject = new Object();
71 myobject.valueOf = Object.prototype.valueOf;
73 mymath.valueOf = Object.prototype.valueOf;
74 var mydate = new Date();
75 mydate.valueOf = Object.prototype.valueOf;
76 var mynumber = new Number();
77 mynumber.valueOf = Object.prototype.valueOf;
78 var mystring = new String();
79 mystring.valueOf = Object.prototype.valueOf;
81 new TestCase( SECTION, "Object.prototype.valueOf.length", 0, Object.prototype.valueOf.length );
83 new TestCase( SECTION,
84 "myarray = new Array(); myarray.valueOf = Object.prototype.valueOf; myarray.valueOf()",
87 new TestCase( SECTION,
88 "myboolean = new Boolean(); myboolean.valueOf = Object.prototype.valueOf; myboolean.valueOf()",
90 myboolean.valueOf() );
91 new TestCase( SECTION,
92 "myfunction = new Function(); myfunction.valueOf = Object.prototype.valueOf; myfunction.valueOf()",
94 myfunction.valueOf() );
95 new TestCase( SECTION,
96 "myobject = new Object(); myobject.valueOf = Object.prototype.valueOf; myobject.valueOf()",
99 new TestCase( SECTION,
100 "mymath = Math; mymath.valueOf = Object.prototype.valueOf; mymath.valueOf()",
103 new TestCase( SECTION,
104 "mynumber = new Number(); mynumber.valueOf = Object.prototype.valueOf; mynumber.valueOf()",
106 mynumber.valueOf() );
107 new TestCase( SECTION,
108 "mystring = new String(); mystring.valueOf = Object.prototype.valueOf; mystring.valueOf()",
110 mystring.valueOf() );
111 new TestCase( SECTION,
112 "mydate = new Date(); mydate.valueOf = Object.prototype.valueOf; mydate.valueOf()",