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Posted By

1man on 12/02/07


Tagged

data array function


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vali29
korzhik


Array Functions as Data

Published in: JavaScript 

The important thing to notice is the () operator in a[2]. It is invoking the function inside a[0] with the argument a[1].

Plain TextExpand 
  1. function functionsDontNeedNames(){
  2. 	var a = new Array(3);//create array length 3
  3. 	a[0] = function(x){return x*x};//this is now the function
  4. 	a[1] = 4;//will be used as 'x'
  5. 	a[2] = a[0](a[1]);//a[2] now equals 16!
  6. }

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