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Merge pull request #283 from qeesung/gh-pages

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Update symbol.md
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Ruan YiFeng 2016-11-21 14:37:21 +08:00 committed by GitHub
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@ -442,7 +442,6 @@ global[Symbol.for('foo')] = 123;
如果键名使用`Symbol`方法生成，那么外部将无法引用这个值，当然也就无法改写。 如果键名使用`Symbol`方法生成，那么外部将无法引用这个值，当然也就无法改写。
```javascript
```javascript ```javascript
// mod.js // mod.js
const FOO_KEY = Symbol('foo'); const FOO_KEY = Symbol('foo');