CODEWITHSUNDEEP
arraysactionscript-3
Joel Posner
Joel Posner

Reputation: 3

Reference an element of an array using a variable in Actionscript 3

I have a bunch of arrays (Q001, Q002, Q003...). Each array is a question plus 4 possible answers. I want to randomly choose which question to display. So I randomly assign an array name to the variable chosenQuestion. Then I try to write the first element of that array into a text box, like so: txt.Question.text = [chosenQuestion][0];

For example, if the the chosen question is Q001 then it puts Q001 in the text box. But I really want in the text box is the first element of the array Q001.

Upvotes: 0

Views: 61

Answers (1)

akmozo
akmozo

Reputation: 9839

Supposed that you have your 3 arrays of questions, so to get the question, you can do like this : 

var question_01:Array = ['question 01', 'answer 01', 'answer 02', 'answer 03', 'answer 04'];
var question_02:Array = ['question 02', 'answer 01', 'answer 02', 'answer 03', 'answer 04'];
var question_03:Array = ['question 03', 'answer 01', 'answer 02', 'answer 03', 'answer 04'];

var selected_question:int = Math.ceil(Math.random() * 3);   // gives : 1, 2 or 3

trace(this['question_0' + selected_question][0]);   // gives : question 01, for example

You can also put your questions arrays into an array like this : 

var questions:Array = [
    ['question 01', 'answer 011', 'answer 02', 'answer 03', 'answer 04'],
    ['question 02', 'answer 012', 'answer 02', 'answer 03', 'answer 04'],
    ['question 03', 'answer 013', 'answer 02', 'answer 03', 'answer 04']
];
selected_question = Math.floor(Math.random() * 3);  // gives : 0, 1 or 2

trace(questions[selected_question][0]); // gives : question 02, for example

Hope that can help.

Upvotes: 1

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