Hide Navigation Links in VueJs When Clicked - vue.js

Question

I tried everything to make the navigation links hide when I clicked but it didn't worked. Here my Header.vue file.
<template>
<nav class="navbar is-dark is-fixed-top">
<div class="container">
<div class="navbar-brand">
<router-link to="/" class="navbar-item">
<img src="../../assets/logo.png" width="">
</router-link>
<a role="button"
:class="{ 'is-active': ShowMenu }"
class="navbar-burger burger"
#click="toggleMenu()"
aria-label="menu"
aria-expanded="false">
<span aria-hidden="true"></span>
<span aria-hidden="true"></span>
<span aria-hidden="true"></span>
</a>
</div>
<div :class="{ 'is-active': ShowMenu }"
class="navbar-menu">
<div class="navbar-start">
<router-link to="/" class="navbar-item">Home</router-link>
<router-link to="/about" class="navbar-item">About</router-link>
</div>
<div class="navbar-end">
<div class="navbar-item">
<div class="field is-grouped">
<p class="control">
<router-link to="/login" class="button is-dark">
<span><i class="fa fa-lock"></i> Login</span>
</router-link>
</p>
<p class="control">
<router-link to="/register" class="button is-light">
<span><i class="fa fa-user"></i> Register</span>
</router-link>
</p>
</div>
</div>
</div>
</div>
</div>
</nav>
Here's the JS codes. Navigation are working when a click the links but the only problem I have is that it didn't automatically hide.
export default {
name: "Header",
data() {
return {
ShowMenu: false,
NavigationItems: true,
NavigationItems: false
}
},
methods: {
toggleMenu: function() {
this.ShowMenu = !this.ShowMenu
},
toggleNavItem: function() {
false
}
}
}

Answer 1

Try
<a v-if='!ShowMenu' role="button" ...
instead of using CSS

Answer 2

You shouldn't use v-if it will "kill" the element in the dom, but if you only want to toggle it use v-show width !ShowMenu like Steven explained.
And if you want to use a CSS class: do you have a class called is-active and is the default behavior of .burger display: none;? If you want to stay on this solution please provide us your CSS.