Add tryelse()

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#1,196 创建于 2020年5月27日 0 条评论 0 个 reaction 已指派 0 人在 GitHub 查看

feature request good first issue

描述

Add a function tryelse, which accepts two statement, trying the first one, and returning it if successful, otherwise, returning the else.

```
string @a = tryelse(functionThatThrows(), 'default');
```
If scream-errors is true, the exception will still be logged.

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