How do you implement model on custom input components?
Interviewer Expectations for this Question
01
Core Competency
Assesses fundamental understanding of Vue.js conventions, runtime behavior, and memory/performance considerations.
02
Evaluation Criteria
Hiring managers look for precision, avoidance of ambiguous jargon, and ability to explain trade-offs under real production conditions.
Comprehensive Model Answer
Verified Solution
The custom events can also be used to create custom inputs that work with v-model. The <input> inside the
component must follow below rules,
- Bind the value attribute to a value prop
- On input, emit its own custom input event with the new value.
Let's take a custom-input component as an example,
Vue.component('custom-input', {
props: ['value'],
template: `
<input
v-bind:value="value"
v-on:input="$emit('input', $event.target.value)"
/>
`
})
Now you can use v-model with this component,
<custom-input v-model="searchInput"></custom-input>
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