# Can custom variable declaration somehow be made possible? **URL:** \ **Category:** Arcade\ **Created:** [July 23, 2021, 5:00pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356 "2021-07-23T17:00:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Sarge](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/sarge/32/19590_2.png) [@Sarge](https://forum.makecode.com/u/Sarge)\ **Post date:** [July 23, 2021, 5:00pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/1 "2021-07-23T17:00:29Z")
Can somebody make an extrention or integrate this function in MakeCode? ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/7/781f0c0e41caa701aa076482d8c2f248a40bd95d.png) This way it is possible to make multiple variables mid-game and allow finally displaying an unlimited number of saved settings (settings already can be done this way, so why not functions?) ---
**Author:** ![Sarge](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/sarge/32/19590_2.png) [@Sarge](https://forum.makecode.com/u/Sarge)\ **Post date:** [July 23, 2021, 6:41pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/3 "2021-07-23T18:41:14Z")
Hmm… Not quite what I asked for ---
**Author:** ![jwunderl](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/jwunderl/32/5308_2.png) [@jwunderl](https://forum.makecode.com/u/jwunderl)\ **Post date:** [July 23, 2021, 6:41pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/4 "2021-07-23T18:41:59Z")
What you’re describing here effectively comes down to either an array or an object ([https://github.com/microsoft/arcade-block-objects](https://github.com/microsoft/arcade-block-objects)). The variables map to ‘normal’ javascript variables, which are all defined at declaration – it is uncommon to have dynamic variable names in programming languages as arrays / objects / maps cover that use case more accurately. The case you mentioned (set `variable0`, set `variable1`, set `variable2`) is an example of when you would use an array – you create one and then index into it to grab values. For arbitrary / non integer values, you would use objects to store groups of values - you keep around one variable and store things on top of that. (It’s possibly worth noting this is significantly slower, in particular on hardware, than using arrays and normal variables - something on the order of like 10-100 times longer to access the variable). ---
**Author:** ![Sarge](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/sarge/32/19590_2.png) [@Sarge](https://forum.makecode.com/u/Sarge)\ **Post date:** [July 23, 2021, 7:18pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/5 "2021-07-23T19:18:46Z")
Yeah, but what if I need to show many text sprites at once? Then this happens: ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/c/c2daa33c644c32bcf29fa1043fbbef96a259fdd2.png) Sure I can make a temporary variable that will store an array value and then repeat that but increase the index that it is collecting by one. However when I need to destroy said sprites it will only work once. That is kind of a bummer. Any way to avoid this? ---
**Author:** ![jwunderl](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/jwunderl/32/5308_2.png) [@jwunderl](https://forum.makecode.com/u/jwunderl)\ **Post date:** [July 23, 2021, 7:54pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/6 "2021-07-23T19:54:20Z")
You can make an array of text sprites instead 🙂 ![arcade-screenshot (2)](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/8/8b8728e8ffc050260262e5880f5d44ac1cf4267e.png) also, instead of the repeat block, there are two other loop blocks that will more easily handle these; this one will do something once for each value in list: ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/3/3fa26376880dc5a7e93445cd1f6cbb0d7702af29.png) as will this, except this gives you an index as well (like you were doing manually with ‘selector’) ![image](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/2X/3/39af7aad010b7def0d1d6d96662a6ba3a12030bd.png) ---
**Author:** ![Sarge](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/sarge/32/19590_2.png) [@Sarge](https://forum.makecode.com/u/Sarge)\ **Post date:** [July 23, 2021, 9:45pm UTC](https://forum.makecode.com/t/can-custom-variable-declaration-somehow-be-made-possible/9356/7 "2021-07-23T21:45:53Z")
Thanks!