accessing multidimensional array string

Question

I'm trying to access the first and second element of a multidimensional string array. Unsuccessfully.

Here is the code:

https://gist.github.com/anonymous/6868b2413a7220bf130a

If i replace the variables like this example:

var question = location[math[0]]

var question = location[math]

It works as intended but displays the answers.

What kind of quiz would that be?!

Should be `location[math][0]` and `location[math][1]` respectively. — Artyom Neustroev, Apr 10 '15 at 17:41
http://stackoverflow.com/questions/966225/how-can-i-create-a-two-dimensional-array-in-javascript — Code Whisperer, Apr 10 '15 at 17:42
Yes, but that would display the answer. location[[0 1]]; Where 0 is the question and 1 is the answer. — Oren, Apr 10 '15 at 17:48

score 3 · Answer 1 · answered Apr 10 '15 at 17:42

3

Try ...

var question = location[math][0];

... and ...

var question = location[math][1];

math per the referenced code is simply a number that is from zero to the length of location; this is the proper notation to get the array elements.

answered Apr 10 '15 at 17:42

rfornal

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score 0 · Answer 2 · edited May 23 '17 at 11:43

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First thought is that this isn't the best way of implementing a quiz, since the user can go right ahead and peak at the answers by inspecting the script?

That said, JS doesn't actually have 2D arrays, instead arrays of arrays! See here: JavaScript Multidimensional Arrays so you will need to change it to something like:

answer = location[math][1];

You should then find it works!

edited May 23 '17 at 11:43

Community

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answered Apr 10 '15 at 18:03

saml

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score 0 · Answer 3 · answered Apr 10 '15 at 18:04

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Solved it, had to use an object, here is the code.

https://gist.github.com/anonymous/319b88cd11a9a3958b6f

The quiz is for myself. Thank you for your time

answered Apr 10 '15 at 18:04

Oren

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accessing multidimensional array string

3 Answers3