<template slot="content">
<form-label class="align-left">パスワードの再設定を行います。</form-label>
</template>
How can i show <form-label class="align-left">パスワードの再設定を行います。</form-label> as text for slot in component in Vuejs?
Vue.component("raw-text", {
template: `<div>
<span ref="source"><slot></slot></span>
</div>`,
mounted: function() {
this.$el.innerText = this.$refs.source.innerHTML;
}});
I've tried this, but $refs.source.innerHTML is compiled source which i'm not expect that.
i expect the output as:
<form-label class="align-left">パスワードの再設定を行います。</form-label>
but the actual is <div class="align-left nts-label"><label><!----> パスワードの再設定を行います。</label></div>
Use v-html directives:
Vue.component("raw-text", {
data: function() {
return {
slotHtml: 'パスワードの再設定を行います'
}
},
template: `<div>
<span ref="source"><slot v-html="slotHtml"></slot></span>
</div>`,
});
Related
As answered here, we can check if a slot has content or not. But I am using a slot which has no name:
<template>
<div id="map" v-if="!isValueNull">
<div id="map-key">{{ name }}</div>
<div id="map-value">
<slot></slot>
</div>
</div>
</template>
<script>
export default {
props: {
name: {type: String, default: null}
},
computed: {
isValueNull() {
console.log(this.$slots)
return false;
}
}
}
</script>
I am using like this:
<my-map name="someName">{{someValue}}</my-map>
How can I not show the component when it has no value?
All slots have a name. If you don't give it a name explicitly then it'll be called default.
So you can check for $slots.default.
A word of caution though. $slots is not reactive, so when it changes it won't invalidate any computed properties that use it. However, it will trigger a re-rendering of the component, so if you use it directly in the template or via a method it should work fine.
Here's an example to illustrate that the caching of computed properties is not invalidated when the slot's contents change.
const child = {
template: `
<div>
<div>computedHasSlotContent: {{ computedHasSlotContent }}</div>
<div>methodHasSlotContent: {{ methodHasSlotContent() }}</div>
<slot></slot>
</div>
`,
computed: {
computedHasSlotContent () {
return !!this.$slots.default
}
},
methods: {
methodHasSlotContent () {
return !!this.$slots.default
}
}
}
new Vue({
components: {
child
},
el: '#app',
data () {
return {
show: true
}
}
})
<script src="https://unpkg.com/vue#2.6.10/dist/vue.js"></script>
<div id="app">
<button #click="show = !show">Toggle</button>
<child>
<p v-if="show">Child text</p>
</child>
</div>
Why you dont pass that value as prop to map component.
<my-map :someValue="someValue" name="someName">{{someValue}}</my-map>
and in my-map add prop:
props: {
someValue:{default: null},
},
So now you just check if someValue is null:
<div id="map" v-if="!someValue">
...
</div
I'm just starting out with VueJS and I was trying to port over a simple jQuery read more plugin I had.
I've got everything working except I don't know how to get access to the contents of the slot. What I would like to do is move some elements passed into the slot to right above the div.readmore__wrapper.
Can this be done simply in the template, or am I going to have to do it some other way?
Here's my component so far...
<template>
<div class="readmore">
<!-- SOME ELEMENTS PASSED TO SLOT TO GO HERE! -->
<div class="readmore__wrapper" :class="{ 'active': open }">
<slot></slot>
</div>
Read {{ open ? lessLabel : moreLabel }}
</div>
</template>
<script>
export default {
name: 'read-more',
data() {
return {
open: false,
moreLabel: 'more',
lessLabel: 'less'
};
},
methods: {
toggle() {
this.open = !this.open;
}
},
}
</script>
You can certainly do what you describe. Manipulating the DOM in a component is typically done in the mounted hook. If you expect the content of the slot to be updated at some point, you might need to do the same thing in the updated hook, although in playing with it, simply having some interpolated content change didn't require it.
new Vue({
el: '#app',
components: {
readMore: {
template: '#read-more-template',
data() {
return {
open: false,
moreLabel: 'more',
lessLabel: 'less'
};
},
methods: {
toggle() {
this.open = !this.open;
}
},
mounted() {
const readmoreEl = this.$el.querySelector('.readmore__wrapper');
const firstEl = readmoreEl.querySelector('*');
this.$el.insertBefore(firstEl, readmoreEl);
}
}
}
});
.readmore__wrapper {
display: none;
}
.readmore__wrapper.active {
display: block;
}
<script src="//cdnjs.cloudflare.com/ajax/libs/vue/2.4.2/vue.min.js"></script>
<div id='app'>
Hi there.
<read-more>
<div>First div inside</div>
<div>Another div of content</div>
</read-more>
</div>
<template id="read-more-template">
<div class="readmore">
<!-- SOME ELEMENTS PASSED TO SLOT TO GO HERE! -->
<div class="readmore__wrapper" :class="{ 'active': open }">
<slot></slot>
</div>
Read {{ open ? lessLabel : moreLabel }}
</div>
</template>
Is it possible to declare a component inside another component in Vue.JS?
this is what i'm trying to do:
<!-- this is declared inside some-component.vue file -->
<script>
export default {
components:{
'cmptest' : {
template:'#cmptest',
props:['mprop']
}
},
data : () => ({
val:'world'
})
};
</script>
<template>
<div>
<template id="cmptest">
{{mprop}}
</template>
<cmptest mprop="hello"></cmptest>
<cmptest :mprop="val"></cmptest>
</div>
</template>
I'd like to avoid globally registering the child component if possible (with Vue.component(...))
In other words, I'd like to specify child's <template> inside the parent component file (without doing a huge line template:'entire-html-of-child-component-here')
Sure.
Like this:
https://jsfiddle.net/wostex/63t082p2/7/
<div id="app">
<app-child myprop="You"></app-child>
<app-child myprop="Me"></app-child>
<app-child myprop="World"></app-child>
</div>
<script type="text/x-template" id="app-child2">
<span style="color: red">{{ text }}</span>
</script>
<script type="text/x-template" id="app-child">
<div>{{ childData }} {{ myprop }} <app-child2 text="Again"></app-child2></div>
</script>
new Vue({
el: '#app',
components: {
'app-child': {
template: '#app-child',
props: ['myprop'],
data: function() {
return {
childData: 'Hello'
}
},
components: {
'app-child2': {
template: '#app-child2',
props: ['text']
}
}
}
}
});
Using Vue Multiselect, I am trying to send a console.log once I have made a selection. I thought it would work by putting it in the watch but it does not work. Where should it be placed. Please see my component below.
Component
<template>
<div>
<label v-for="topic in topics" class="radio-inline radio-thumbnail" style="background-image: url('http://s3.hubsrv.com/trendsideas.com/profiles/74046767539/photo/3941785781469144249_690x460.jpg')">
<input type="radio" v-model="internalValue" name="topics_radio" :id="topic.id" :value="topic.name">
<span class="white-color lg-text font-regular text-center text-capitalize">{{ topic.name }}</span>
</label>
</div>
</template>
<script>
export default {
props: ['value'],
data () {
return {
internalValue: this.value,
topics: []
}
},
mounted(){
axios.get('/vuetopics').then(response => this.topics = response.data);
},
watch: {
internalValue(v){
this.$emit('input', v);
console.log('topic has been chosen!!!');
}
}
}
</script>
It fires events, so you may catch them.
<multiselect ... #select="doSomething" ...>
Then add your method
...
methods: {
doSomething(selectedOption, id) {
console.log(selectedOption);
}
}
Make sure you implemented vue-multiselect correctly, I don't see the component in your code.
I'm very new to Vuejs and JS frameworks in general, so bear with me. I'm trying to call a method that resides in my root component from a child component (2 levels deep) by passing it as a prop, but I get the error:
Uncaught TypeError: this.onChange is not a function
at VueComponent._onChange (category.js:8)
at boundFn (vendor.js?okqp5g:361)
at HTMLInputElement.invoker (vendor.js?okqp5g:2179)
I'm not sure if I'm on the right track by assigning the prop to a method inside the child component, but see what you think:
index.js
var app = new Vue({
el: '#app',
data: function () {
return {
categories: [],
articles: []
}
},
methods: {
onChange: function () {
console.log('first one');
return function () {
console.log('second one');
}
}
},
});
The html:
<div id="app">
<sidebar :onChange=onChange :categories=categories></sidebar>
<varticles :articles=articles></varticles>
</div>
sidebar.js:
Vue.component('sidebar', {
props: ['onChange', 'categories'],
methods: {
_onChange: function () {
this.onChange();
}
},
template: `
<div class="sidebar">
<category v-for="item in categories" :onChange="_onChange" v-bind:category="item"></category>
</div>
`
});
category.js:
Vue.component('category', {
props: ['category', 'onChange'],
methods: {
_onChange: function () {
this.onChange();
}
},
template: `
<div class="category">
<h2>{{ category.name }}</h2>
<ul>
<li v-for="option in category.options">
<input v-on:change="_onChange" v-bind:id="option.tid" type="checkbox" v-model="option.checked">
<label v-bind:for="option.tid">{{ option.name }}</label>
</li>
</ul>
</div>
`
});
There's got to be simpler way to do this!
I'd suggest taking a look at this https://v2.vuejs.org/v2/guide/components.html#camelCase-vs-kebab-case. A simplified version of your code is in this fiddle https://jsfiddle.net/z11fe07p/641/
When writing props in your templates declare them without Capital letters.
A prop declared as onChange in your props is equivalent to on-change in your html.
<sidebar :on-change=onChange :categories=categories></sidebar>
Also I would suggest looking at events and non parent-child communication if you want a link between components that are more than 1 level deep. https://v2.vuejs.org/v2/guide/components.html?#Non-Parent-Child-Communication