How do you check if a string in Jekyll is actually a number? For example you might want to do one thing when a value is
'123' and another when the value is
'ABC'. Jekyll doesn’t seem to provide a simple way to do this out of the box. Crazy that such a simple feature doesn’t exist!
I’ve come up with a method. The logic is to treat the string as if it were a number and see how it reacts. A string of letters cannot be added to, but a string of numbers can.
plusing a string that’s not a number will return
plusing a string that’s a number will return the original number.
Let me know if there’s a better way to do this!
This method seems pretty robust. Only integers and floats without other characters in the string are considered numbers. The value
'0' is correctly identified as a number.