My child component has an input field that is supposed to update the data in the parent component when the user starts typing. Below is a snippet of my code, let me know if you need more information.
Child
<input
:keyup="updateFilters(filters[data.field.key])"
:placeholder="data.label"
/>
methods: {
updateFilters(value) {
this.$emit("input", value);
}
}
Parent
data() {
return {
filters: {
name: "",
age: "",
address: "",
},
};
},
Modifying the parent from a child component follows a similar pattern as emitting other events such as onchange, onkeyup, onkeydown, and so forth.
Vue.component('parent', {
data() {
return {
parentValue: ''
};
},
template: `
<div>
<label>Parent State Value:</label>
{{parentValue}}
<br/><br/>
<label>Input as Child Component:</label>
<br/>
<child @fromChild="fromChild"></child>
</div>
`,
methods: {
fromChild(value) {
this.parentValue = value
console.log(value) // someValue
}
}
})
Vue.component('child', {
template: `
<input
v-on:keyup="updateParent($event.target.value)"
placeholder="type something"
/>
`,
methods: {
updateParent(value) {
console.log(value)
this.$emit("fromChild", value);
}
},
})
new Vue({
el: "#app",
data: {
label: 'in Vue'
},
methods: {
toggle: function(todo) {
todo.done = !todo.done
}
}
})
A demonstration of this functionality can be found here.
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