Example:
$(document).click(function() { blah });
// and
$('html').click(function() { blah });
I'll answer the question in several parts.
In JavaScript (not just jQuery, but all JavaScript) the document keyword is a handle on the object that contains the HTMLDocument. You might use this handle in the following scenarios...
// Get the current web address
alert(document.location.href);
When you pass the document to jQuery, it parses the document into a jQuery object.
When you pass the "html" selector to jQuery, it uses this string to find any elements in the document object model that match the selector (in all cases, there will be one html element).
In reality, you won't notice a difference in behaviour between these:
$(document).click(function() { alert('blah'); });
$('html').click(function() { alert('blah'); });
$('body').click(function() { alert('blah'); });
But the technical difference is that document is an object and 'html' is a string that is used to search for an element. Both the object and any matching elements are converted into jQuery objects.
As they all add a click event handler to the "visible" part of the page, which is the only part of the page a user can realistically click on.
try to put out the innerHTML of both, whats the result? i reckon (but han't tested) that
document
is really the complete document, including <html>
and all elements in ithtml
references the <html>
-tag, so there will only be the <head>
and <body>
in your output, not the <html>
-tag itselfbut: for your code (adding an click-handler) there would be no difference, because clicking into the document will always be a click on the <html>
(as long as you site is valid and has an <html>
-tag)
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