1. Dynamic Components
Dynamic components allow you to switch between different components based on a condition without using multiple conditional statements. To create a dynamic component, use the reserved <component> tag with the ‘is’ attribute.
<component v-bind:is="currentComponent"></component>
In your Vue.js instance, you can update the value of ‘currentComponent’ to switch between components.
new Vue({
el: '#app',
data: {
currentComponent: 'component-a'
},
components: {
'component-a': ComponentA,
'component-b': ComponentB
}
});
2. Custom Directives
Custom directives allow you to create reusable code that can be applied to elements in your application. You can create a custom directive using the ‘Vue.directive()’ method.
Vue.directive('focus', {
inserted: function (el) {
el.focus();
}
});
To use the custom directive, add it to an element using the ‘v-‘ prefix.
<input v-focus>
3. Filters
Filters apply formatting and transformations to your data before displaying it. You can filter using the ‘Vue.filter()’ method.
Vue.filter('uppercase', function (value) {
return value.toUpperCase();
});
To use the filter, add it to an expression using the pipe ‘|’ symbol.
{{ message | uppercase }}
4. Mixins
Mixins are a flexible way to share functionality between components. To create a mixin, define an object with the desired properties and methods.
const myMixin = {
created: function () {
this.myMethod();
},
methods: {
myMethod: function () {
console.log('Mixin method called');
}
}
};
To use the mixin, add it to a component using the ‘mixins’ property.
new Vue({
el: '#app',
mixins: [myMixin]
});
5. Scoped Slots
Scoped slots allow you to pass data from a parent component to a slot in a child component. To create a scoped slot, use the ‘slot-scope’ attribute on a <template> tag in the parent component.
<child-component>
<template slot-scope="props">
<span>{{ props.data }}</span>
</template>
</child-component>
In the child component, bind the data to the slot using the ‘v-bind’ directive.
<slot v-bind:data="myData"></slot>