add files via upload

1 files changed, 50 insertions, 0 deletions

diff --git a/download-utils.js b/download-utils.js
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index 0000000..0156bdc
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+++ b/download-utils.js
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+// citation: https://www.geeksforgeeks.org/how-to-create-and-download-csv-file-in-javascript/
+
+// performs a downloadUtils of a csv file, given a string buffer in the format of csv text
+const download = data => {
+    // creating a Blob for having a csv file format
+    // and passing the data with type
+    const blob = new Blob([data], {type: 'text/csv'});
+
+    // Creating an object for downloading url
+    const url = window.URL.createObjectURL(blob);
+
+    // Creating an anchor(a) tag of HTML
+    const a = document.createElement('a');
+
+    // Passing the blob downloading url
+    a.setAttribute('href', url);
+
+    // Setting the anchor tag attribute for downloading
+    // and passing the downloadUtils file name
+    const date = new Date();
+    // stamp in format of `YYYY-MM-DDTHHmmss`
+    const stamp = `${date.getFullYear()}-${date.getMonth()+1}-${date.getDate()}T${date.getHours()}${date.getMinutes()}${date.getSeconds()}`;
+    const fileName = `cs1300-ab-testing-data-${stamp}.csv`;
+    a.setAttribute('download', fileName);
+
+    // Performing a downloadUtils with click
+    a.click()
+}
+
+// given the data as an array of objects, generates the text of it's corresponding csv
+const buildcsv = data => {
+    // Empty array for storing the values
+    let csvRows = [];
+
+    console.log("buildcsv", data);
+    data.forEach(d => {
+        // if the array is empty, append the headers (which are the keys)
+        if (csvRows.length === 0) {
+            const headers = Object.keys(d);
+            csvRows.push(headers.join(','));
+        }
+
+        // append the data
+        const values = Object.values(d).join(',');
+        csvRows.push(values)
+
+    })
+    // Returning the array joining with new line
+    return csvRows.join('\n');
+}