improve hint for iterators1

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Cal Jacobson 2022-09-25 15:22:15 -05:00 committed by GitHub
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@ -818,9 +818,9 @@ Step 1:
We need to apply something to the collection `my_fav_fruits` before we start to go through We need to apply something to the collection `my_fav_fruits` before we start to go through
it. What could that be? Take a look at the struct definition for a vector for inspiration: it. What could that be? Take a look at the struct definition for a vector for inspiration:
https://doc.rust-lang.org/std/vec/struct.Vec.html. https://doc.rust-lang.org/std/vec/struct.Vec.html.
Step 2 & step 2.1: Step 2 & step 3:
Very similar to the lines above and below. You've got this! Very similar to the lines above and below. You've got this!
Step 3: Step 4:
An iterator goes through all elements in a collection, but what if we've run out of An iterator goes through all elements in a collection, but what if we've run out of
elements? What should we expect here? If you're stuck, take a look at elements? What should we expect here? If you're stuck, take a look at
https://doc.rust-lang.org/std/iter/trait.Iterator.html for some ideas. https://doc.rust-lang.org/std/iter/trait.Iterator.html for some ideas.