add csv download

1 files changed, 22 insertions, 0 deletions

diff --git a/csv-dump.mjs b/csv-dump.mjs
new file mode 100644
index 0000000..76e1e08
--- /dev/null
+++ b/csv-dump.mjs
@@ -0,0 +1,22 @@
+export default class {
+    constructor(rows) {
+        this.rows = rows;
+    }
+
+    download() {
+        // XXX: should escape various things, but the quick-n-dirty
+        // calls.
+        const data = this.rows.map(row => row.join(',')).join('\r\n');
+        const file = new Blob([data], { type: 'text/csv' })
+        let a = document.createElement('a');
+        const url = URL.createObjectURL(file);
+        a.href = url;
+        a.download = 'filename.csv';
+        document.body.appendChild(a);
+        a.click();
+        setTimeout(_ => {
+            document.body.removeChild(a);
+            URL.revokeObjectURL(url);
+        }, 0);
+    }
+}