


Vue-Material-Year-Calendar plug-in: What should I do if the calendar is not updated after activeDates.push?
Apr 04, 2025 pm 03:30 PM Vue-Material-Year-Calendar plugin: Solution to the calendar not being updated after activeDates.push
When using the Vue-Material-Year-Calendar plugin, you often encounter a problem: after adding dates to the activeDates
array, the calendar interface does not update the selected status. This article will analyze the causes of the problem and provide solutions.
Problem description:
According to the official documentation, use activeDates.sync
to bind the activeDates
array and add date information to the array through a custom method. But even if the activeDates
array already contains the date, the calendar interface still does not display the selected status.
Code example (Vue 2):
<yearcalendar :activeclass="activeclass" :activedates.sync="activedates" prefixclass="your_customized_wrapper_class" v-model="year"></yearcalendar> data() { return { year: 2019, activedates: [ { date: '2019-02-13' }, { date: '2019-02-14', classname: 'red' }, // ... ], activeclass: '', } }, toggledate(dateinfo) { const index = this.activedates.indexOf(dateinfo); if (index === -1) { this.activedates.push(dateinfo); } else { this.activedates.splice(index, 1); } }
The root cause and solution of the problem:
The problem is the difference in the use of .sync
modifiers in Vue 2 and Vue 3.
Vue 2 solution: Remove the .sync
modifier and use :activedates
directly:
<yearcalendar :activeclass="activeclass" :activedates="activedates" prefixclass="your_customized_wrapper_class" v-model="year"></yearcalendar>
Vue 3 solution: use ref
and add selected
attribute:
const activeDates = ref([ { date: '2024-02-13', selected: true, className: '' }, { date: '2024-02-14', className: 'red' }, // ... ]); const toggledate = (dateinfo) => { const index = activeDates.value.findIndex(item => item.date === dateinfo.date); if (index === -1) { activeDates.value.push({...dateinfo, selected: true}); } else { activeDates.value.splice(index, 1); } };
Through the above modifications, the calendar interface will correctly reflect the changes in activeDates
array. The logic of the toggledate
function also needs to be adjusted according to actual needs. For example, when push
a new date, explicitly set selected: true
. The Vue 3 example uses findIndex
to find dates more accurately, avoiding the problem of potential comparison objects inconsistency. The expansion operator ...dateinfo
is also used to avoid directly modifying the original object and maintaining the consistency of the data.
The above is the detailed content of Vue-Material-Year-Calendar plug-in: What should I do if the calendar is not updated after activeDates.push?. For more information, please follow other related articles on the PHP Chinese website!

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