preview and upload image in jquery

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<td>Company Logo:<%= file_field_tag :avatar,name: "avatar",:onchange => "showimagepreview(this)",:class=>"img_file" %></td>
    <img id="imgprvw" style="width: 167px; height: 94px; margin-top: 8px;" />

<script>
  function showimagepreview(input) {
    if (input.files && input.files[0]) {
    var filerdr = new FileReader();
    filerdr.onload = function(e) {

    $('#imgprvw').attr('src', e.target.result);
    }
    filerdr.readAsDataURL(input.files[0]);
    }
    $('.image_upload').submit();
  }
</script>
Experienced Ruby on Rails and Web Developer having 11+ years experience in Ruby & Ruby on Rails framework, TTD, Rspec. Expert on Git, SVN , Git Hook, Bitbucket. I use MySQL, MongoDB , PostgreSQL & Sqlite for Database Management. In front-end development I use HTML5 / HAML, CSS3 / SCSS, javascript / coffeescript. I also know about the deploy the applications on VPS Server i.e AWS EC2, Heroku, Ditital Ocean, Hostgator, Site5, BlueHost, AWS Load Balancing, Elastic Beanstalk, AWS S3 e.t.c ☆ Frameworks ☆ Ruby on Rails, Sinatra ☆ Database ☆ - PostgreSQL, MySQL, SQLite, - MongoDB, Amazon DynamoDB,AWS RDS. ☆ Front end Techniques ☆ - ReactJS, Angular js, Node js, Javascript, JQuery, HTML, CSS - Twitter Bootstrap, Coffeescript. Why hire me? * Master degree in Computer Science * 6 years professional experiences and 10+ projects completed * Available all day long, 7 days/24 hours * Good communication skills with fluent English * Self-motivated, fast-learner and "I can do" mind * Quality insurance and fast delivery

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