[Solved] Maximum height of textarea to 300px (Javascript)

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It’s simply a matter of checking the height prior to resizing. If you would like to eliminate scrollbar flicker consider setting overlflow-y to hidden until 300:

function resize () {

    var height = text.scrollHeight <= 300 ? text.scrollHeight : 300;
    text.style.height = height+'px';

}

fiddle – http://jsfiddle.net/vtr8kvkx/2/

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solved Maximum height of textarea to 300px (Javascript)