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up vote 1 down vote favorite

I cant seem to solve this problem, heres what I have...

vid1=0;
vid2=0;
vid3=0;

num=1;

'vid'+num = 1;
// vid1=1;

I want to create the variable based on the number, so if the number is 2, then make a variable by the name of vid2 and set it equal to 1.

PS: This is my first time on stackoverflow, so sorry if I made any mistakes in terms of tradition on this website =) And thannks in advanced.

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8  
why not use array? –  Jonathan de M. Jan 21 at 1:44
 
possible duplicate of Javascript - variable value is name of another variable –  epascarello Jan 21 at 1:50
 
possible duplicate of Javascript Variable Variables –  Felix Kling Jan 21 at 1:55
 
@JonathandeM. sorry, i want to stick to my code –  royjr Jan 21 at 1:58
 
@epascarello nope, mines simpler –  royjr Jan 21 at 1:59
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1 Answer

up vote 5 down vote accepted

If you're in the global namespace, use this:

window['vid' + num] = 1;

but this is a really good use case for an array:

var numbers = [0, 0, 0];
var num = 1;

numbers[num] = 1;
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For more details : stackoverflow.com/questions/4862193/javascript-global-variables –  Libert Piou Piou Jan 21 at 1:49
 
+1^8 (where 8 = infiniti) =) I love it! –  royjr Jan 21 at 2:02
 
And where is the eval option? –  RobG Jan 21 at 2:50
 
@RobG - I don't go down the sewer drain without full body anti-toxic protective clothing. You get me that, and I'll get you eval. –  Joseph Silber Jan 21 at 2:52
 
I just think that for the sake of completeness, it should be mentioned (and warned against of course). –  RobG Jan 22 at 8:58
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