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$ is not defined rails

RailsjQuery
gemfile
gem 'jquery-rails'

gemを追加して読み込んでおくこと。



app>assets>javascripts>application.jsにて

//= require jquery       ←これを追加
//= require jquery_ujs 　←これを追加
//= require_tree .　　　　←必ずこれより先に記載。
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yoshinoritera55
Yoshiiiii @yoshinoritera55
2019年4月27日START
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