remove old stacks

js/app.js

@@ -0,0 +1,19 @@
+window.onload = function() {
+    document.body.addEventListener('htmx:responseError', function(evt) {
+        console.log(evt.detail);
+    });
+
+    document.dispatchEvent(new Event("loaded"));
+};
+
+function is_positive_integer(val) {
+    return /^\d+$/.test(val);
+}
+
+function inventory_new_item_check_input() {
+    return document.getElementById('new-item-name').value.length != 0
+    && is_positive_integer(document.getElementById('new-item-weight').value)
+}
+function check_weight() {
+    return document.getElementById('new-item-weight').validity.valid;
+}