What are the event modifiers provided by Vue?
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
Normally, javascript provides event.preventDefault() or event.stopPropagation() inside event handlers. You can
use methods provided by vue, but these methods are meant for data logic instead of dealing with DOM events. Vue
provides below event modifiers for v-on and these modifiers are directive postfixes denoted by a dot.
- .stop
- .prevent
- .capture
- .self
- .once
- .passive
Let's take an example of stop modifier,
<!-- the click event's propagation will be stopped -->
<a v-on:click.stop="methodCall"></a>
You can also chain modifiers as below,
<!-- modifiers can be chained -->
<a v-on:click.stop.prevent="doThat"></a>
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Candidate Response Strategy & Interview Tips
- Start with a concise one-sentence summary: Deliver a direct, confident answer first before expanding into nuances.
- Demonstrate real-world trade-offs: Discuss where this approach excels and when you would avoid it in production systems.
- Discuss complexity & edge cases: Proactively explain time/space complexity or boundary conditions (null values, scale limits).
- Prepare for interviewer follow-ups: Technical hiring panels frequently probe deeper into concurrency, backward compatibility, or alternative libraries.