Created
November 5, 2012 02:56
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JavaScript Object Property Attributes
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Javascript</title> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var a={ | |
| x:1, | |
| y:2, | |
| get z(){ | |
| return this.x+this.y; | |
| }, | |
| set z(v){ | |
| var ratio=v/(this.x+this.y); | |
| this.x *= ratio; | |
| this.y *= ratio; | |
| } | |
| }; | |
| console.log(Object.getOwnPropertyDescriptor(a,'x'));//{value: 1, writable:true, enumerable:true, configurable:true} | |
| console.log(Object.getOwnPropertyDescriptor(a,'z'));//{ get: /*func*/, set:/*func*/, enumerable:true, configurable:true} | |
| console.log(Object.getOwnPropertyDescriptor(a,'toString'));//=>undefined | |
| </script> | |
| </body> | |
| </html> |
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