{"id":544,"date":"2019-04-23T06:21:34","date_gmt":"2019-04-23T06:21:34","guid":{"rendered":"http:\/\/info.juliusgoh.life\/?p=544"},"modified":"2019-04-23T06:41:34","modified_gmt":"2019-04-23T06:41:34","slug":"check-filesize-extension-before-upload-javascript","status":"publish","type":"post","link":"https:\/\/info.juliusgoh.life\/?p=544","title":{"rendered":"Check Filesize &#038; Extension before upload (Javascript)"},"content":{"rendered":"<h1>Input<\/h1>\n<pre>\r\n&lt;input type=\"file\" onchange=\"ValidateFile(this);\" id=\"uploaded_file\"&gt;\r\n<\/pre>\n<p>\u00a0<\/p>\n<h1>Function for checking upon on change for uploaded file<\/h1>\n<pre>\r\nfunction ValidateFile(file){\r\n\u00a0 \u00a0 var FileSize = file.files[0].size \/ 1024 \/ 1024; \/\/In MB\r\n\u00a0 \u00a0 var filePath = file.files[0].name;\r\n \u00a0 \u00a0var extension = filePath.substr((filePath.lastIndexOf('.') +1));\r\n\u00a0 \u00a0 var allowed_extension = [\"jpg\",\"png\",\"jpeg\"];\r\n\r\n\u00a0 \u00a0 if (FileSize > 2) {\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0alert('File size exceeds 2MB');\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0removeUploadedFile();\r\n\u00a0 \u00a0 }else if(!allowed_extension.includes(extension)){\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0alert('File Extension Not Permited');\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0removeUploadedFile();\r\n\u00a0 \u00a0 \u00a0}else{\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 console.log(filePath + \" Allowed\");\r\n\u00a0 \u00a0 \u00a0} \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\r\n} \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\r\nfunction removeUploadedFile(){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0var uploaded_file = $(\"#uploaded_file\"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n\u00a0\u00a0 \u00a0 uploaded_file.replaceWith(uploaded_file.val('').clone(true));\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Input &lt;input type=&#8221;file&#8221; onchange=&#8221;ValidateFile(this);&#8221; id=&#8221;uploaded_file&#8221;&gt; \u00a0 Function for checking upon on change for uploaded file function ValidateFile(file){ \u00a0 \u00a0 var FileSize = file.files[0].size \/ 1024 \/ 1024; \/\/In MB \u00a0 \u00a0 var filePath = file.files[0].name; \u00a0 \u00a0var extension = filePath.substr((filePath.lastIndexOf(&#8216;.&#8217;) +1)); \u00a0 \u00a0 var allowed_extension = [&#8220;jpg&#8221;,&#8221;png&#8221;,&#8221;jpeg&#8221;]; \u00a0 \u00a0 if (FileSize > 2) { \u00a0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":545,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/posts\/544"}],"collection":[{"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=544"}],"version-history":[{"count":6,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/posts\/544\/revisions"}],"predecessor-version":[{"id":551,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/posts\/544\/revisions\/551"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=\/wp\/v2\/media\/545"}],"wp:attachment":[{"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/info.juliusgoh.life\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}