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October 22, 2018 08:15
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FrontEnd snippets
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| <script> | |
| function send_post() { | |
| request = $.ajax({ | |
| url: "/url/", | |
| type: "post", | |
| data: 'forn_name='+JSON.stringify({'key':'value'}) | |
| }); | |
| request.done(function (response, textStatus, jqXHR){ | |
| console.log("Succesful!"); | |
| }); | |
| request.fail(function (jqXHR, textStatus, errorThrown){ | |
| console.error( | |
| "The following error occurred: "+ | |
| textStatus, errorThrown | |
| ); | |
| }); | |
| } | |
| </script> |
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| <script> | |
| function readFile(file) { | |
| var http = new XMLHttpRequest(); | |
| http.open('get', file); | |
| http.onreadystatechange = function () { | |
| text = http.responseText; | |
| console.log(text); | |
| }; | |
| http.send(); | |
| }; | |
| </script> |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Title</title> | |
| </head> | |
| <body> | |
| <input type="file" name="afile" id="afile" accept="img/*"/> | |
| <script> | |
| document.querySelector('#afile').addEventListener('change', function(e) { | |
| var file = this.files[0]; | |
| var fd = new FormData(); | |
| fd.append("binary_data", file); | |
| fd.append("fname", document.querySelector('#afile').value) | |
| var xhr = new XMLHttpRequest(); | |
| xhr.open('POST', '../path/to_cgi_script.py', true); | |
| xhr.upload.onprogress = function(e) { | |
| if (e.lengthComputable) { | |
| var percentComplete = (e.loaded / e.total) * 100; | |
| console.log(percentComplete + '% uploaded'); | |
| } | |
| }; | |
| xhr.onload = function() { | |
| alert(this.response); | |
| if (this.status == 200) { | |
| var resp = JSON.parse(this.response); | |
| console.log('Server got:', resp); | |
| } | |
| }; | |
| xhr.send(fd); | |
| }, false); | |
| </script> | |
| </body> | |
| </html> |
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