Array Key Zero [0] in Jquery?

[samnizamani]

var textarea_height = $(this)[0].scrollHeight();
Wht does this zero index mean? It has been confusing me for a long tym?

And what is the difference between innerHeight And ScrollHeight In Jquery! Thx in advance…

[TheDoc]

It appears that the [0] is only used when trying to return scrollHeight. I have no idea what scrollHeight is, as I’ve never used it.

Here’s an explanation of the [0]: http://stackoverflow.com/a/6921849/1339786

innerHeight is the height of an element, including its padding but not including its border.

[samnizamani]

thx, I am still confused y it’s used with scrollheight… :/

[Author]

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