is $event.target.value a javascript command or a vue.js command?

Question

I have this line in my vue.js application

<input type="text" v-on:input="cssClass=$event.target.value">

I know that in javascript I can get event.target.value. I think that the above code is Vue.js specific code, but I'm not sure. Need confirmation.

you are using a custom attribute v-on:input... so it's not default to javascript — Ibu
– Ibu, Commented Jan 10, 2017 at 23:17
if I take out the dollar sign, the vue.js application doesn't work. So this is a vue.js code right? :) — Simon Suh
– Simon Suh, Commented Jan 10, 2017 at 23:17
sorry, I forgot to specify. I was wondering specifically about the '$event' part. — Simon Suh
– Simon Suh, Commented Jan 10, 2017 at 23:18

tony19 · Accepted Answer · 2022-07-15 20:42:56Z

6

v-on:input will consume the actual DOM event of the input initially, store against $event, a special variable, and then make it available to the function being called. In this case you access $event.target.value to get the newly input value from the event. Methods in Inline Handlers

Hope that helps.

edited Jul 15, 2022 at 20:42

tony19

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answered Jan 11, 2017 at 0:28

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Community · Accepted Answer · 2017-05-23 11:53:12Z

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You can use $event because of VueJS. Angular2 also has the same special variable. What exactly $event object do in Angular 2?

edited May 23, 2017 at 11:53

CommunityBot

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answered Jan 15, 2017 at 20:49

FNunez

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