In Testing Side Effects Without the Side Effects, we explored a JavaScript Effect System where business logic doesn’t execute actions directly. Instead, it returns a description of what it intends to do in the form of a simple Command object. For example:
Since all of these air filters physically trap particulates, they’ll eventually fill up and become less effective. Most manufacturers recommend replacing the filter every six months, while others claim a year-long life span. Most smart air purifiers will let you know in the app when it’s time to replace. When you’re considering a unit’s cost, be sure to factor in the expense of replacement filters, which you may end up buying twice a year.
，这一点在wps中也有详细论述
Фото: Jamal Awad / Reuters，详情可参考手游
Donald Trump has urged the Australian government to grant asylum to five members of the Iranian women’s football team, amid reports that they refused to return home following the team’s elimination from the Women’s Asian Cup and were taken into the protection of Australian police.