javascript - why set both className and class? -


i no longer sure why this. read somewhere should set both class , classname

why both? why not "class". trying understand this, since every thing seems work fine "class". 

$(e).attr('class','highlightme'); $(e).attr('classname','highlightme');

---update-----------------------------------------------------------------------------

so if want clear classes first? there might more one... this?

$(e).removeclass(); $(e).addclass('highlightme');

---update-----------------------------------------------------------------------------

this ended doing, seems working fine...so far

the attr initializes class... gets rid of other classes might have in there

the addclass add more classes

i not use removeclass, because not referencing element id

$(.base123).attr('class','base123'); $(.base123).addclass('highlightme blinkme');

both wrong, wrong strong word, there more optimal approaches such as: jquery need addclass(). if class attached element won't anything, if isn't add it. address update, calling .removeclass() (with no parameters) remove classes on element (or elements)


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