Question

I have a div like this :

<td id="length" data-length=<?php echo $length;?> >

And I want to get the value of my php variable ($length) in a jquery script.

After that I have to format it to replace the comma with point.

With this snippet :

var $length         = jQuery(this).find("#length");
console.log($length.data('length'));

I see read my variable in the console

but when I want to format it to replace the comma with a point like this :

console.log(parseFloat($length.val().replace(",", ".")));

I get NaN

Please help to solve that problem !

Answer 1

Your missing the quotes around the value of data-length. Correct your HTML markup like this:

<td id="length" data-length="<?php echo $length;?>" >

Next, you do not want val() you want data('length')

console.log(parseFloat($length.data('length').replace(",", ".")));