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iOS Build a Weather App with Swift (Retired) Pulling Data From the Web Review: Network Calls and JSON

Paul Harding
Paul Harding
18,822 Points

This question is bad!!! The correct answer collection of key-value pairs and ordered list of values doesn't work.

Anyone get something to work on this question?

8 Answers

Kieran Robinson
Kieran Robinson
9,411 Points

the four answers I chose were

1) Fill in the blanks below A) JSON can be represented by two types of structures - ARRAYS and DICTIONARIES

2) What are some of the advantages of JSON? A) All of the above

3) In the code snippet below, can you indicate what type of method dataWithContentsOfURL() is? var someData = NSData.dataWithContentsOfURL(someURL, options: nil, error: nil) A) Class method

4) What does JSON stand for? A) JavaScript Object Notation

Hope this helps Paul Harding


This is a horrible question for an online quiz. The wikipedia page for JSON reads:

"JSON is built on two structures:

A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.

An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence."

But those answers are not recognized.

Other acceptable answers could be "array" and "object"

The word "dictionary", is used as an example of a possible type in a particular language. ObjectiveC and Swift have Dictionaries, but, other languages have hash tables, or keyed lists.

I would suggest making this a multiple-choice question because of the wide array of possible answers a person could provide.

I would have put key-value, and ordered list as the most likely answers. This questions needs some serious re-working.

indeed u bumped into this question as well.. i thought its "object" and "array" as well

Oddly, "dictionaries" followed by "arrays" didn't work, but "arrays" followed by "dictionaries" did.

horrible question, needs fixing

I cant say its a bad question but key pairs and dictionaries are the answer I heard in the video personally. I could under stand how one could rationalize a key pair to get array with some background knowledge but still its probably best to change the question or add to teacher notes an example of key paired array

2,274 Points

bad question +1

the answer what i think actually is key/value