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41 File Name: 15.2.4.2.js
42 ECMA Section: 15.2.4.2 Object.prototype.toString()
44 Description: When the toString method is called, the following
46 1. Get the [[Class]] property of this object
47 2. Call ToString( Result(1) )
48 3. Compute a string value by concatenating the three
49 strings "[object " + Result(2) + "]"
52 Author: christine@netscape.com
56 var SECTION = "15.2.4.2";
57 var VERSION = "ECMA_1";
59 var TITLE = "Object.prototype.toString()";
61 writeHeaderToLog( SECTION + " "+ TITLE);
63 new TestCase( SECTION, "(new Object()).toString()", "[object Object]", (new Object()).toString() );
65 new TestCase( SECTION, "myvar = this; myvar.toString = Object.prototype.toString; myvar.toString()",
66 GLOBAL.replace(/ @ 0x[0-9a-fA-F]+ \(native @ 0x[0-9a-fA-F]+\)/, ''),
67 eval("myvar = this; myvar.toString = Object.prototype.toString; myvar.toString()")
70 new TestCase( SECTION, "myvar = MyObject; myvar.toString = Object.prototype.toString; myvar.toString()",
72 eval("myvar = MyObject; myvar.toString = Object.prototype.toString; myvar.toString()") );
74 new TestCase( SECTION, "myvar = new MyObject( true ); myvar.toString = Object.prototype.toString; myvar.toString()",
76 eval("myvar = new MyObject( true ); myvar.toString = Object.prototype.toString; myvar.toString()") );
78 new TestCase( SECTION, "myvar = new Number(0); myvar.toString = Object.prototype.toString; myvar.toString()",
80 eval("myvar = new Number(0); myvar.toString = Object.prototype.toString; myvar.toString()") );
82 new TestCase( SECTION, "myvar = new String(''); myvar.toString = Object.prototype.toString; myvar.toString()",
84 eval("myvar = new String(''); myvar.toString = Object.prototype.toString; myvar.toString()") );
86 new TestCase( SECTION, "myvar = Math; myvar.toString = Object.prototype.toString; myvar.toString()",
88 eval("myvar = Math; myvar.toString = Object.prototype.toString; myvar.toString()") );
90 new TestCase( SECTION, "myvar = new Function(); myvar.toString = Object.prototype.toString; myvar.toString()",
92 eval("myvar = new Function(); myvar.toString = Object.prototype.toString; myvar.toString()") );
94 new TestCase( SECTION, "myvar = new Array(); myvar.toString = Object.prototype.toString; myvar.toString()",
96 eval("myvar = new Array(); myvar.toString = Object.prototype.toString; myvar.toString()") );
98 new TestCase( SECTION, "myvar = new Boolean(); myvar.toString = Object.prototype.toString; myvar.toString()",
100 eval("myvar = new Boolean(); myvar.toString = Object.prototype.toString; myvar.toString()") );
102 new TestCase( SECTION, "myvar = new Date(); myvar.toString = Object.prototype.toString; myvar.toString()",
104 eval("myvar = new Date(); myvar.toString = Object.prototype.toString; myvar.toString()") );
106 new TestCase( SECTION, "var MYVAR = new Object( this ); MYVAR.toString()",
107 GLOBAL.replace(/ @ 0x[0-9a-fA-F]+ \(native @ 0x[0-9a-fA-F]+\)/, ''),
108 eval("var MYVAR = new Object( this ); MYVAR.toString()")
111 new TestCase( SECTION, "var MYVAR = new Object(); MYVAR.toString()",
113 eval("var MYVAR = new Object(); MYVAR.toString()") );
115 new TestCase( SECTION, "var MYVAR = new Object(void 0); MYVAR.toString()",
117 eval("var MYVAR = new Object(void 0); MYVAR.toString()") );
119 new TestCase( SECTION, "var MYVAR = new Object(null); MYVAR.toString()",
121 eval("var MYVAR = new Object(null); MYVAR.toString()") );
124 function MyObject( value ) {
125 this.value = new Function( "return this.value" );
126 this.toString = new Function ( "return this.value+''");