Tutorials HQ

Just like in a quest, sometimes things don’t go as planned. But fear not, we have ways to handle them!

Understanding Errors in Zig

Errors are like red flags that tell us something went wrong. They’re messages from the program telling us it needs help.

const result = doSomethingRisky();
if (result != ExpectedResult) {
    // Handle the error here.
}

Imagine you’re on an adventure. What kind of warning signs would you look for to avoid danger?

Using the try Expression

The try expression is like a shield against errors. It helps us attempt risky actions and handles any errors that occur.

const result = try doSomethingRisky();

If you were a superhero, what kind of protective gear or superpower would you use to shield yourself from harm?

Handling Errors with catch

The catch block is where we deal with errors that occur inside a try expression. It’s like our emergency response plan.

const result = try doSomethingRisky();
catch |err| {
    // Handle the error 'err' here.
}

Imagine you’re a guardian of a magical artifact. What kind of plans or spells would you use to protect it from harm?

Now, let’s try using error handling in some code. What kind of risky tasks would you like to attempt, and how would you handle any potential errors?