#arrays

#arrays

What is the best way to set up an array from a form so that I don't have to loop through every key-value on the PHP back end. (I would like to test if empty before using each key)

There's a good reason that many developers pause before using .sort(), .reverse(), or .splice() in JavaScript: those methods mutate the original array. That single side effect can lead to subtle, hard-to-trace bugs, especially in apps with shared or reactive state. The good news is that in the last couple of years we've gotten new array methods that make working with arrays safer and cleaner by avoiding mutation altogether: These return copies instead of changing the original array.