var result = parseFloat($('.lot2').text()) / parseFloat($('span.Price').text());
$('.result').text(result);
});
How can I convert selected values from comma separated values to dot separated values? There is this function str.replace, but I don't know how to put it in the function.
How can I convert selected values from comma separated values to dot separated values?
From that, I take it that the values you get from $('.lot2').text() and $('span.Price').text() will use , as the decimal point rather than . (as is the case in some locales). I assume that you may also have . as a thousands separator in there.
If that's what you mean, then you need to do the , => . conversion, remove the . thousands separator, then parse the result, then do . => , conversion on the resulting value (and possibly add the . thousands separator). Here it is with each step separate for clarity:
// Get lot 2
var lot2 = $('.lot2').text();
// Remove all `.` thousands separators, replace the one `,` decimal separator with `.`
lot2 = lot2.replace(/\./g, '').replace(",", ".");
// Same with price
var price = $('span.Price').text().replace(/\./g, '').replace(",", ".");
// Parse them and get the result
var result = parseFloat(lot2) / parseFloat(price);
// Replace the `.` decimal separator with `,`
result = String(result).replace(".", ",");
// Show result
$('.result').text(result);
If you want to add . thousands separators in there, this question and its answers (and several others here on SO) show how to do that, just use . rather than ,.
Since this is likely to come up repeatedly in your code, you probably want to put both functions (locale form => JavaScript form, JavaScript form => locale form) into functions you can reuse.