Remove component from template for certain pages in Vue2 - javascript

I'm working on a Vue2 app.
It consists of a base template (App.vue) that looks like this:
<template>
<v-app>
<div id="app">
<NavigationBar></NavigationBar>
...
</div>
</v-app>
</template>
And various components (i.e., Home.vue, Login.vue, Navigation.vue etc...)
Being part of the main template, the NavigationBar is displayed in each component.
I would love to remove the NavigationBar only in the Login.vue component.
What could be the best way to achieve this?
Thanks

Related

Nuxtjs: How to call component inside another component?

I understand paradigm "Page-component" but what if I have a page that renders component, how do I call another component inside this component? Currently nuxtjs does not allow me do it. I can not stick to standart "page-component" scheme as I am bulding cart which calls cart-items.
Say If a cart component which is called by page looks like this, how would it call cart-item component inside it?
<!---- cart component called from index.vue --->
<template>
<div>
<Cart-item></Cart-item> < ---------- This doesn't work.
</div>
</template>
<script>
export default {
props: ['items']
}
</script>
I managed it the standard way:
<template>
<div>
<CartItem></CartItem>
</div>
</template>
<script>
import CartItem from '../components/Cart-item'
export default {
props: ['items']
}
</script>
Since nuxtjs auto-registers all components wonder if there is more graceful way.
EDIT: as promised, here is an example on how to pass some content to a component from another one thanks to slots. This is totally working in any Nuxt page ofc.
NestedContent.vue
<template>
<div>
<p>Here is the NestedContent component and below is a slot passed to ParentWithSlots' component</p>
<hr />
<parent-with-slots>
<!-- <template #default> // this one can be omit since we do use the default slot here -->
<p>This content is inserted into the component ParentWithSlots</p>
<!-- </template> -->
</parent-with-slots>
</div>
</template>
ParentWithSlots.vue
<template>
<div>
<p>xxxxxxxxxxx ParentWithSlots' content before slot xxxxxxxxxxx</p>
<slot>Default content in case none is provided</slot>
<p>xxxxxxxxxxx ParentWithSlots' content after slot xxxxxxxxxxx</p>
</div>
</template>
Here is how it looks
PS: you may also give a try to layouts, it can be useful for overall positioning of some of your components visually.
If your components are in the components directory, you can set components: true in your nuxt.config.js and have access to it pretty much anywhere without any additional step with the <cart-item></cart-item> syntax.
More details here: https://nuxtjs.org/blog/improve-your-developer-experience-with-nuxt-components/

How can I pass down slots to a grandchild component in Vue 3?

If I have a layout component that contains a few slots, is it possible to have a component within layout populate those slots?
JS Fiddle
<div id="app">
<layout>
<page></page>
</layout>
</div>
const app = Vue.createApp({});
app.component('layout', {
template: `
<header>
<slot name="header"></slot>
</header>
<main>
<slot name="main"></slot>
</main>
`,
});
app.component('page', {
template: `
<!--
is there a way fill each slot of "layout"? i.e.
<template #header>
<h1>Page Header</h1>
</template>
<template #main>
<h1>Page Content</h1>
</template>
-->
`,
});
app.mount('#app');
It seems what I'm looking for is being referred to as template blocks in other places. This is not something Evan You (the creator of Vue) currently supports as he doesn't believe this functionality adds enough value for the added complexity.
Some interesting links:
Template blocks for component inheritence (proposed syntax)
Possible upcoming third-party package to achieve this
Example of using Pug with it's concepts of block and extends

Render external element inside Vue component

I have an external div that I need to render inside my Vue app. I'm trying to use a slot, like but that's a no go as nothing renders.
Any ideas?
Goal is to have HTML like this (Vue mounts on #app):
<div id="app" data-slot-header="#header"></div>
<div id="header">
<h1>Title here</h1>
</div>
Then the Vue component
<template>
<div>
<slot name="header"></slot>
</div>
</template>
You can use a dynamic <component> and refer to your #header element as a template reference.
For example
new Vue({
data: () => ({
headerComponent: {
template: '#header' // refer to template element by selector
}
}),
}).$mount('#app')
#app:before,#header:before{position:absolute;top:0;right:0;color:rgba(1,1,1,.5);font-size:.8rem}#app{border:1px solid #666;position:relative}#app:before{content:'Vue app'}#header{position:relative;opacity:.5}#header:before{content:'Original header'}
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.min.js"></script>
<div id="app">
<p>Dynamic component rendered here 👇</p>
<component :is="headerComponent"></component>
</div>
<div id="header">
<h1>Title here</h1>
</div>
Slots are mainly used with reusable Vue components so that the parent component can render custom stuff inside designated sections of the child. The root component does not have a parent, so it doesn't make sense to use slots for this.
Why can't you just hard-code the div in the template? Or do you need it to be dynamic; will you be swapping out the header contents in some situations? Please provide more information about what your use-case is, otherwise my answer is "just hard-code it".
Take a look at portal-vue. It allows child components to render templates anywhere in the DOM. This might work for your situation.

Use animation only on specific page(s) with vue-router

I have a problem with transitions using vue.js. I have a "Login" component that holds my login page. I would like to use an animation name="fade" only on that specific page (component). In my App.vue I have written:
<template>
<div id="app">
<transition name="fade">
<router-view></router-view>
</transition>
</div>
</template>
I understand the problem. This animation applies on all pages inside router-view. Is there any solution to remove transition or even change the transition name to "none" after router-view redirects to another page?
Thank you!

Communicating variable in vue.js between components

I am building app using laravel and vue. I have navbar, currently it looks like:
<template>
<nav class="navbar">
<p>{{msg}}</p>
</nav>
</template>
And I use it like here:
<body class="">
<div id="app">
<div class="">
<navbar></navbar>
#yield('content')
</div>
</div>
</body>
In yield I am loading another components, so I have navbar and another component together. Now I want to override that {{msg}} variable from navbar in another components. In every component that variable will be diferent.
I do not know how to override it in components and from {{msg}} do some text. Can you help me? (That code above is all what I have)
If you want to use msg in other components, then you need to use prop
Use like:
props: ['msg'],
Then, you need to bind it like:
<component-name :msg="msg"></component-name>
In your component, you can take it like:
<template>{{ msg }}</template>
Hope you understand!
Components can be communicate with props. You can transfer the data to another components and you can use if statement.
https://v2.vuejs.org/v2/guide/components.html#Props

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