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Update 10.6-update.md
Spelling fix.
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@@ -20,7 +20,7 @@ myData.x.y.z = 7;
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myData.a.b.push(9);
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```
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you have no way of determining which data has changed since the previous copy is overriden. Instead, you need to create a new copy of `myData` and change only the parts of it that need to be changed. Then you can compare the old copy of `myData` with the new one in `shouldComponentUpdate()` using triple-equals:
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you have no way of determining which data has changed since the previous copy is overridden. Instead, you need to create a new copy of `myData` and change only the parts of it that need to be changed. Then you can compare the old copy of `myData` with the new one in `shouldComponentUpdate()` using triple-equals:
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```js
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var newData = deepCopy(myData);
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