JavaScript オブジェクト 新しいページはコチラ
提供: yonewiki
(→prototype.isPrototypeOf() メソッド) |
(→hasOwnProperty() メソッド) |
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| 672行: | 672行: | ||
サンプル | サンプル | ||
<syntaxhighlight lang="javascript" line start="1"> | <syntaxhighlight lang="javascript" line start="1"> | ||
| + | <HTML> | ||
| + | <HEAD> | ||
| + | <TITLE>JavaScript メソッド.hasOwnProperty()</TITLE> | ||
| + | </HEAD> | ||
| + | <BODY> | ||
| + | JavaScript メソッド.hasOwnProperty()<br /> | ||
| + | <SCRIPT Language="JavaScript"> | ||
| + | <!-- | ||
| + | function Func1(){ | ||
| + | this.property_nValue1 = 100; | ||
| + | } | ||
| + | function Func2(){ | ||
| + | this.property_nValue2 = 100; | ||
| + | } | ||
| + | |||
| + | Func1.prototype = new Func2(); | ||
| + | Func2.prototype.property_nValue3 = 200; | ||
| + | |||
| + | objFunc = new Func1(); | ||
| + | |||
| + | document.write("■hasOwnProperty()<BR />"); | ||
| + | document.write(objFunc.hasOwnProperty("property_nValue1"), "<BR />"); | ||
| + | document.write(objFunc.hasOwnProperty("property_nValue2"), "<BR />"); | ||
| + | |||
| + | document.write("<BR />"); | ||
| + | |||
| + | document.write("■in<BR />"); | ||
| + | document.write("property_nValue1" in objFunc, "<BR />"); | ||
| + | document.write("property_nValue2" in objFunc, "<BR />"); | ||
| + | --> | ||
| + | </SCRIPT> | ||
| + | </BODY> | ||
| + | </HTML> | ||
</syntaxhighlight> | </syntaxhighlight> | ||
[[Media:JavaScript Object hasOwnProperty.html|実行結果サンプル]] | [[Media:JavaScript Object hasOwnProperty.html|実行結果サンプル]] | ||
