Is there a way to add attributes to a DOM element with boolean value like this:
<body test='false'></body>
I need to set this without using javascript.
Thanks
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62answers:
1
+1
A:
HTML5 has something called data-attributes that might fit your needs. You could do something like this:
<body data-test="true"></body>
And then check the boolean value of the attribute like this (using jQuery):
!!$('body').attr('data-test')
Explanation of the "double bang" operator:
You can get the boolean value of any javascript object like this:
!!0 //false
!!1 //true
!!undefined //false
!!true //true
Edit
As noted by David, a non-empty string (like "false" for example) would yield true.
You've got 2 options here:
dont set the attribute, which will be undefined and hence
falsecompare to the string "true" instead of using the !! operator
Hope that helps!
Pablo Fernandez
2010-08-15 08:41:08
… but the string `"false"` is `true`
David Dorward
2010-08-15 08:59:05
That is quite a big edit … which doesn't address the problem `!!"false" // true`
David Dorward
2010-08-15 19:54:39
@David fixed now
Pablo Fernandez
2010-08-16 20:39:49