How to get data from radio button to JS?

Hi, using the FormData API, I got NaN Code: https://jsfiddle.net/cs6qphtr/3/

8 Replies

Jochem•3y ago

gotta add a value attribute to the radio buttons you probably want value="1" for the first one, value="2" for the second, and so on

son argOP•3y ago

Okay, done Works! Thanks! 🙂

13eck•3y ago

Need val…dangit @jochemm ! ::shakes fist in impotent rage:: Also, you can clean it up a bit:

const form = new FormData(this);
const rating = parseInt(form.get("rating"),10);

const form = new FormData(this);
const rating = parseInt(form.get("rating"),10);

Since this is the form that the event is being called on. And it's always good to remember to pass in the radix for parseInt. If you don't want to use the radix then Number() would work.

son argOP•3y ago

What's radix btw?

13eck•3y ago

radix is the base. Base 2 is binary, base 10 is decimal (what we normally use), base 16 is hexadecimal, etc.

son argOP•3y ago

Oh okay

13eck•3y ago

In a positional numeral system, the radix or base is the number of unique digits, including the digit zero, used to represent numbers. For example, for the decimal/denary system (the most common system in use today) the radix (base number) is ten, because it uses the ten digits from 0 through 9.

–https://en.wikipedia.org/wiki/Radix TIL vigesimal is base-20

son argOP•3y ago

Thanks! 🙂

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How to get data from radio button to JS?