Speaking of which, one of my favourite UX brainfarts is treating text fields where you enter a sum as numbers.
Why, you ask? Let's you have a number like 10,000 and you want to replace it with 20,000. You delete the leading 1, and boom! The number is now zero, and three of the digits are gone, and you'll have to retype them like you got no other things to do with your life.
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Speaking of which, one of my favourite UX brainfarts is treating text fields where you enter a sum as numbers.
Why, you ask? Let's you have a number like 10,000 and you want to replace it with 20,000. You delete the leading 1, and boom! The number is now zero, and three of the digits are gone, and you'll have to retype them like you got no other things to do with your life.