fix(curriculum): decimal to binary converter step 77 wording change (#55644)

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/64646577f28ade99100a55c3.md

@@ -7,9 +7,11 @@ dashedName: step-77
 
 # --description--
 
-Now your `showAnimation()` function is set up. But if you look closely at your `checkUserInput()` function, you'll notice that it's not very DRY – you're calling `parseInt()` to convert `numberInput.value` into a number several times.
+Now your `showAnimation()` function is set up. But if you look at your `checkUserInput()` function, you'll notice that it is calling `parseInt()` to convert `numberInput.value` into a number several times.
 
-A simple way to fix this is to create a new variable to store the converted number. Then you only have to convert the number once and can use it throughout the function.
+This is generally a poor practice, for reasons like performance concerns or even just the fact that you'd have to change your logic in multiple places to update the `parseInt()` call.
+
+To fix this, create a new variable to store the converted number. Then you only have to convert the number once and can use it throughout the function.
 
 Create a new variable called `inputInt` and assign it the number converted from `numberInput.value`.