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Before we talk about how to catch errors, let's talk about a result, because most errors don't require

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the program to stop entirely.

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And for these errors, we use the result type.

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The result type is going to allow us to prepare in case there is a failure.

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Most failures we can predict or account for so we can take some type of action to remediate these failures

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without having the program.

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Close.

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Result is an enum that has two variants OC and air or and is defined like this.

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So we have an enum called Result and has two generic variants, T and E.

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And then in here we have OC, T and air or however you want to say it right there.

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So that is the result.

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Enum.

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So a very common case that we can look at real quick is and I need to is opening a file.

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So let's bring in the file into scope.

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And then we can say.

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Let file equal file open and remember these can fail.

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So we'll just call it text, which obviously I have not created.

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But if we hover over the open.

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Method.

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We can see that we are being returned.

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A result.

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So.

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Now that we know that a result is returned in these possible scenarios, we can look at how to capture

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these errors.