Question: Create a variable of some name (you pick) and assign it a key/value pair of number:234. Then print the value for the key number in

Create a variable of some name (you pick) and assign it a key/value pair of “number”:234. Then print the value for the key “number” in that Dictionary.

2. Create of Optional Binding to unwrap the value of an Optional variable using ‘let’, ‘guard’, and ‘switch’.

3. Create an example of using the Nil-Coalescing operator

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