Create promises.ts

Author: Eggy115

promises.ts

@@ -0,0 +1,11 @@
+function fetchData(url: string): Promise<string> {
+    return fetch(url)
+        .then(response => response.text())
+        .then(text => {
+            console.log(`Data fetched: ${text}`);
+            return text;
+        });
+}
+
+fetchData("https://example.com")
+    .then(data => console.log(`Data received: ${data}`));