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

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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.

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.

Share Improve this question edited Jan 15, 2017 at 21:42 Sage 4,9371 gold badge23 silver badges29 bronze badges asked Jan 10, 2017 at 23:15 Simon SuhSimon Suh 10.9k28 gold badges90 silver badges119 bronze badges 3
  • you are using a custom attribute v-on:input... so it's not default to javascript – 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 Commented Jan 10, 2017 at 23:17
  • sorry, I forgot to specify. I was wondering specifically about the '$event' part. – Simon Suh Commented Jan 10, 2017 at 23:18
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2 Answers 2

Reset to default 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.

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

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