我应该完全停止使用内联JavaScript吗?

In a discussion elsewhere on SO, I was informed that "[m]ost browsers will not execute inline javascript... these days." This is news to me, and I have been researching to try to verify this statement, in order to understand if I need to adjust the code on some of the websites I maintain in order to make them compatible with future browsers.In a discussion elsewhere on SO, I was informed