Created
April 17, 2018 17:59
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defineProperty.html
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Document</title> | |
| </head> | |
| <body> | |
| <script> | |
| var obj = {} | |
| var x = 0 | |
| var descriptor = { | |
| configurable: false, | |
| // value: 1, | |
| // writable: true, | |
| get: function() { | |
| return x | |
| }, | |
| set: (a) => { x = x + a } | |
| } | |
| Object.defineProperty( | |
| obj, | |
| 'prop', | |
| descriptor | |
| ) | |
| debugger | |
| </script> | |
| </body> | |
| </html> |
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