vue项目锚点的使用

在vue项目中如何使用锚点呢？

在vue-router中定义 scrollBehavior

scrollBehavior (to, from, savedPosition) {

if (savedPosition) {

// savedPosition is only available for popstate navigations.

return savedPosition

} else {

const position = {}

// new navigation.

// scroll to anchor by returning the selector

if (to.hash) {

position.selector = to.hash

}

// 如果meta中有scrollTop

if (to.matched.some(m => m.meta.scrollToTop)) {

// cords will be used if no selector is provided,

// or if the selector didn't match any element.

position.x = 0

position.y = 0

}

// if the returned position is falsy or an empty object,

// will retain current scroll position.

return position

}

}