Question

48

Issue with jQuery data() treating string as number

rated 0 times [ 55] [ 7] / answers: 1 / hits: 18183 / 12 Years ago, sat, june 9, 2012, 12:00:00

I have a MySQL BIGINT that I am storing in HTML5 data. Then I'm trying to access that value and pass it through an AJAX call.

<div data-id=211285677671858177>

And the JavaScript:

var send_data = {

    id: '' + $(this).data('id')

}

$.post('/send.php', send_data);

The issue is that the jQuery data function seems to retrieve that value as a floating point and not a string. So appending it to a blank string isn't helping because it's already too late - it's already been rounded (in this case to 211285677671858180). What can I do to fix this?

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jeremiahianx

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2 Years ago

answered 12 Years ago kaceyr · Accepted Answer

This isn't a case of long int really, the number you're getting is the closest available representation as a floating-point number.

Anyway, you want the value as a string. Quote the jQuery docs for .data (emphasis mine):

Every attempt is made to convert the string to a JavaScript value
(this includes booleans, numbers, objects, arrays, and null) otherwise
it is left as a string. To retrieve the value's attribute as a string
without any attempt to convert it, use the attr() method.