Read csv file automatically
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2 changed files with 11 additions and 29 deletions
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@ -27,7 +27,7 @@
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<table id="table_bla"></table>
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<script>
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handleFile("world_data_v1.csv")
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handleFile()
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</script>
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38
main.js
38
main.js
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@ -1,36 +1,24 @@
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// Source: https://blog.mounirmesselmeni.de/2012/11/20/reading-csv-file-with-javascript-and-html5-file-api/
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// Source: https://www.js-tutorials.com/javascript-tutorial/reading-csv-file-using-javascript-html5/
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// Source: https://stackoverflow.com/questions/13329853/reading-server-file-with-javascript
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function handleFile(path) {
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function handleFile() {
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// Check for the various File API support.
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if (window.FileReader) {
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// FileReader are supported.
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getAsText(file);
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var xmlhttp = new XMLHttpRequest();
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xmlhttp.onreadystatechange = function () {
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if (xmlhttp.status == 200 && xmlhttp.readyState == 4) {
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processData(xmlhttp.responseText);
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}
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};
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xmlhttp.open("GET", "world_data_v1.csv", true);
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xmlhttp.send();
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} else {
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alert('FileReader are not supported in this browser.');
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}
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}
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function getAsText(fileToRead) {
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var reader = new FileReader();
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// Read file into memory as UTF-8
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// TODO: fileToRead is the path to the file -> create a file handle
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reader.readAsText(fileToRead);
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// Handle errors load
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reader.onload = loadHandler;
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reader.onerror = errorHandler;
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}
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function loadHandler(event) {
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var csv = event.target.result;
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processData(csv);
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}
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function processData(csv) {
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var table = "<table class='table'>";
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var allTextLines = csv.split(/\r\n|\n/);
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@ -53,9 +41,3 @@ function processData(csv) {
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document.getElementById('table_bla').innerHTML = table;
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}
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function errorHandler(evt) {
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if (evt.target.error.name == "NotReadableError") {
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alert("Canno't read file !");
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}
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}
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