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Laravel Echo
前提知識
LaravelはWebSocketを使ってEvents (Laravel)をブロードキャストする仕組みがある

Laravel Echoとは
Events (Laravel)をlistenできるJSのライブラリ
>Laravel Echo is a JavaScript library that makes it painless to subscribe to channels and listen for events broadcast by Laravel.
Broadcasting - Laravel - The PHP Framework For Web Artisans

講座
Laracasts: Get Real With Laravel Echo #Laracasts