为什么JSON.parse不能用于“23232323”？

Question

I have this field

text = "23232323."

and for validation I want to get it like this 23232323.

I am trying with JSON.parse(text) giving SyntaxError: JSON.parse: missing digits after decimal point

and eval(text) is giving 23232323

How can I fix it?

Answer 1

It can't be parsed because, contrary to popular belief, JSON is a strongly defined language and you can't simply put anything that you could eval.

Here's how numbers are defined :

(see json.org )

You can solve the problem by removing the dot at the end or, better, by not putting it in the first place. Of course, if you trust the source, you can simply use eval('('+yourstring+')') too.