Load a TSV-file using the File API.
Created
May 10, 2014 02:53
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Load a file
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| margin-top: 25px; | |
| margin-left: 50px; | |
| font-family: "Helvetica Neue", sans-serif; | |
| font-weight: 100; | |
| font-size: 60px; | |
| color: #777; | |
| -webkit-font-smoothing: antialiased; | |
| } | |
| #file { | |
| color: steelblue; | |
| font-size: 60px; | |
| } | |
| #file:hover { | |
| color: orange; | |
| cursor: pointer; | |
| } | |
| input { | |
| visibility: hidden; | |
| } | |
| .info { | |
| display: flex; | |
| font-size: 25px; | |
| width: 515px; | |
| } | |
| </style> | |
| <body> | |
| <div id="fileInfo"> | |
| <div id="file">Click and choose a file</div> | |
| <input type="file" id="chooser"> | |
| </div> | |
| <div id="data"></div> | |
| <script src="main.js"></script> |
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| window.rows = [] | |
| # load handler invoked on change event | |
| load = -> | |
| File = @files[0] | |
| return if not File.name.match '\.tsv$' | |
| file.textContent = File.name | |
| reader = new FileReader() | |
| reader.onload = (file) -> | |
| @result.split('\n').map (row) -> | |
| window.rows.push(row.split('\t')) if row.match /^\d/ | |
| data.textContent = @result | |
| reader.readAsText File | |
| # click and choose a file to load | |
| chooser.addEventListener('change', load) | |
| file.addEventListener('click', -> chooser.click()) |
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| (function() { | |
| var load; | |
| window.rows = []; | |
| load = function() { | |
| var File, reader; | |
| File = this.files[0]; | |
| if (!File.name.match('\.tsv$')) { | |
| return; | |
| } | |
| file.textContent = File.name; | |
| reader = new FileReader(); | |
| reader.onload = function(file) { | |
| this.result.split('\n').map(function(row) { | |
| if (row.match(/^\d/)) { | |
| window.rows.push(row.split('\t')); | |
| } | |
| }); | |
| data.textContent = this.result; | |
| }; | |
| reader.readAsText(File); | |
| }; | |
| chooser.addEventListener('change', load); | |
| file.addEventListener('click', function() { | |
| chooser.click(); | |
| }); | |
| }).call(this); |
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