frontend - How to differentiate between reflow and repaint in chrome developer tools? -


how differentiate between repaint

a repaint occurs when changes made elements affect visibility not layout. example, opacity, background-color, visibility, , outline. repaints expensive because browser must check visibility of other nodes in dom — 1 or more may have become visible beneath changed element.

and reflow

reflows have bigger impact. refers re-calculation of positions , dimensions of elements, leads re-rendering part or of document. changing single element can affect children, ancestors, , siblings.

using chrome developer tools(or other similar tools)?

in chrome performance tab see repaint. repaint


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