Lekcja 3

Lekcja_03/static/range.html

@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html lang="pl">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Lekcja 3.4</title>
+</head>
+<body>
+    <input type="range" name="r1" id="r1">
+    <input type="range" name="r2" id="r2">
+
+    <script>
+        document.getElementById("r1").onchange = function() {
+            const data = JSON.stringify({
+                "r1": document.getElementById("r1").value
+            })
+            const options = {
+                method: "POST",
+                headers: {
+                    "Content-Type": "application/json"
+                },
+                body: data
+            }
+            fetch("/range", options)
+                .then(function(response) {
+                    return response.json()
+                })
+                .then(function(data) {
+                    document.getElementById("r2").value = data.r2
+                })
+                .catch(function(error) {
+                    console.error(error)
+                })
+        }
+    </script>
+</body>
+</html>