In my Vue.js application, I have the following line of code:
<input type="text" v-on:input="cssClass=$event.target.value">
While I understand that in JavaScript I can access event.target.value, I am unsure if the code above is specific to Vue.js. Can someone confirm this for me?
v-on:input captures the DOM event of the input, stores it in a special variable called $event, and then makes it accessible to the function being executed. To retrieve the newly input value from the event, you can use $event.target.value. Learn more about this in Methods in Inline Handlers.
I hope that explanation was helpful.
Utilizing $event is made possible thanks to the wonders of VueJS. A similar unique variable can also be found in Angular2. Discovering the role of the $event object in Angular 2
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