Created
October 25, 2016 12:42
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| 'use strict'; | |
| NaN = 0 // Syntax error! | |
| var obj1 = {}; | |
| Object.defineProperty(obj1, 'x', {value: 10, writeable: false}); | |
| obj1.x = 9 // Syntax error! | |
| var obj2 = {x: 10}; | |
| obj2.x = 20; // Accepted |
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