meet it

Arrays can tell you what is inside them.

Arrays can answer questions. asks: is jam in here? It gives back true or false, so it fits straight into an if.

tells you where jam is, as an index. If it is not there at all, you get -1, because no real place has that number.

For other questions, like which number is the smallest, search by hand. Walk through the array with a loop, and use an if to keep the best one so far.

let fridge = ["milk", "cheese", "jam"];
console.log(fridge.includes("jam"));
console.log(fridge.indexOf("cheese"));
console.log(fridge.indexOf("ham"));

Searching is case-sensitive, so "Jam" and "jam" do not match.

guess first

Is there milk in the fridge? Make a guess.

Guess before you run it. Wrong guesses are how you learn, and nothing is marked.

let fridge = ["milk", "cheese", "jam"];
console.log(fridge.includes("Milk"));

your turn

Your turn. Get on the guest list.

Type one of the guest names between the quotes, spelled exactly as it is in the array. Then press run to find out your guest number.

Your code

press run to see what happens

fix it

The coldest day was 4, not 0. Fix the search!

Broken code to fix

press run to see what happens

No temperature here is below 0, so coldest never changes. Where does it start?
Start coldest at a real temperature from the array, like the first one.
Change 0 to temps[0] on line 2, then press run.

nailed it

you can search an array now. :D

.includes() answers true or false.
.indexOf() gives the index, or -1 if it is missing.
To find the smallest, start with a real item and compare.

new words in your collection

includes
indexOf

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