1.监听单个值
引入：
import {…, watch} from “vue”;
import {useRouter} from ‘vue-router’;
export default {
setup() {
const route = useRouter();
//获取当前路由地址
watch(
() => route.currentRoute.value.path,
(newVal, oldVal) => {
console.log(newVal, oldVal);
}
)
}
}
2.监听多个值
还是上面路由的例子文章来源：https://www.toymoban.com/news/detail-632692.html
export default {
setup() {
const route = useRouter();
//获取当前路由地址
watch(
() => [route.currentRoute.value.path,route.currentRoute.value.href],
(newVal, oldVal) => {
//此时返回的是数组,按下标获取对应值
console.log(newVal[0]);
console.log(newVal[1]);
}
)
}
}
2.深度监听文章来源地址https://www.toymoban.com/news/detail-632692.html
export default {
setup() {
const route = useRouter();
//获取当前路由地址
watch(()=>route, (newVal, oldVal) => {
console.log(newVal)
console.log( oldVal)
},
//深度监听
{deep: true}
)
}
}
到了这里，关于vue3 watch 监听多值以及深度监听用法的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
