javascript for loop defines a dynamic variable name

Question

Folks    Not sure if eval   or window   is the answer  but I am trying to loop through an array  and create variables for each item in that array dynamically   My myArray looks like     foo   bar   baz     code   for  var i   myArray length - 1  i  gt   0  i--       var myVar   eval myArray i       console log foo  console log bar  console log baz    Is this possible

User · Answer

I think you could do it by creating parameters in an object maybe?

var myObject = {}; for(var i=0;i<myArray.length;i++) {     myObject[ myArray[i] ]; }

If you don't set them to anything, you'll just have an object with some parameters that are undefined. I'd have to write this myself to be sure though.

User · Answer

You cannot create different  variable names  but you can create different object properties  There are many ways to do whatever it is you re actually trying to accomplish  In your case I would just do  for  var i   myArray length - 1  i  gt   0  i--       console log eval myArray i          More generally you can create object properties dynamically  which is the type of flexibility you re thinking of   var result       for  var i   myArray length - 1  i  gt   0  i--        result myArray i     eval myArray i           I m being a little handwavey since I don t actually understand language theory  but in pure Javascript  including Node  references  i e  variable names  are happening at a higher level than at runtime  More like at the call stack  you certainly can t manufacture them in your code like you produce objects or arrays  Browsers do actually let you do this anyway though it s terrible practice  via  window  myVarName      namingCollisionsAreFun       per comment

[javascript] javascript, for loop defines a dynamic variable name

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