Determine a variable by function parameter

Question

I was wondering if you could "combine" a variable and function parameter? If so, how could you do it?

E.g.

var word1 = 1;
var word2 = 13;
var word3 = 3;

function magicFunction (magicParameter) {
  //something magical happens here
  return magicVariable; //"word" + magicParameter somehow
}

magicFunction(1) = 5; //word1 = 5
magicFunction(2) = 13; //word2 = 13
magicFunction(3) = 3; //word3 = 3

Thanks!

Update: You are able to do this with eval():

var word1 = 5;
var word2 = 13;
var word3 = 3;

function magicFunction (magicParameter) {
  var magicVariable = eval("word" + magicParameter);
  return magicVariable; //"word" + magicParameter somehow
}

console.log( magicFunction(1) ) //word1 = 5
console.log( magicFunction(2) ) //word2 = 13
console.log( magicFunction(3) ) //word3 = 3

There is word variable inside combine function. is that expected behavior — Venkat.R, Dec 05 '16 at 18:57
@Venkatraman No, it could be anything. {magic} just stands for anything that allows you to "combine" the two things. — Chris Happy, Dec 05 '16 at 18:59

score -1 · Answer 1 · answered Dec 05 '16 at 19:00

-1

here magic value is +

var word1 = 1;

function combine (index) {
  magicVariable = word1 + index;
  
  return magicVariable;
}

console.log(combine(1));

answered Dec 05 '16 at 19:00

Mahi

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is what you want magician ? – Mahi Dec 05 '16 at 19:00
Could you expand on that? That outputs "2" not `word1` – Chris Happy Dec 05 '16 at 19:10
@ChrisHappy because word1 is variable not string . if we used `"word1"+index` then output would be `word1` – Mahi Dec 05 '16 at 19:15

Determine a variable by function parameter

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