catching some errors using the match() method and other tools
for...in info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...in
template literals info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
match() info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/match
regex info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
regex groups info: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Groups_and_Ranges
