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Fix typo in parseFloat example comment#1263

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2 changes: 1 addition & 1 deletion1-js/05-data-types/02-number/article.md
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Original file line numberDiff line numberDiff line change
Expand Up@@ -367,7 +367,7 @@ alert( parseInt('100px') ); // 100
alert( parseFloat('12.5em') ); // 12.5

alert( parseInt('12.3') ); // 12，只有整数部分被返回了
alert( parseFloat('12.3.4') ); // 12.3，在第二个点出停止了读取
alert( parseFloat('12.3.4') ); // 12.3，在第二个点处停止了读取
```

某些情况下，`parseInt/parseFloat` 会返回 `NaN`。当没有数字可读时会发生这种情况：
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