• The .prop() method gets the property value for only the first element in the matched set.

• $( elem ).prop( "checked" ) true (Boolean) Will change with checkbox state

• $( elem ).attr( "checked" ) (1.6+) "checked" (String) Initial state of the checkbox; does not change

According to the W3C forms specification, the checked attribute is a boolean attribute, which means the corresponding property is true if the attribute is present at all—even if, for example, the attribute has no value or is set to empty string value or even "false". This is true of all boolean attributes.

It's a sad state of affairs. I often peek at the metadata of other people's online photos (with my Online Image-Data Viewer), and it seems that a lot of people with pro and semi-pro cameras set them to save in different color spaces, such as AdobeRGB, and present them on the web that way (and without even an embedded profile). The problem is not that they use a different color space to begin with, but that they use something other than sRGB for the versions they present online; they're ensuring that pretty much everyone will see the wrong colors.

Prada SPR07F