Re: Why are GWT widgets heavy?

@Thomas: thanks for the insight, exactly what I was looking for. I wasn't aware that DOM manipulations could have "such" a cost.

It's could to be more aware of this during development, especially for mobile apps.

This DOM manipulation cost greatly depends on the browser! If you target Chrome + FireFox then DOM operations are as fast or faster than innerHTML if you make sure to work on the DOM structure while it is not attached to the document. If its attached, then its always slow as hell because the browser must do layout recalculations and redrawing after each append/removeChild call.

-- J.

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