Primo committ Notevole

src/googlemap/index.ts

@@ -0,0 +1,25 @@
+let promise = null
+const id = 'google-cdn'
+const url = 'https://maps.googleapis.com/maps/api/js?key=AIzaSyB228FQfRMabWfIczMamI1NSYMJg2FqLts'
+export default () => {
+  if (!promise) {
+    promise = new Promise((resolve, reject) => {
+      if (document.getElementById(id)) {
+        console.error(`Error loading ${url} async: ${id} is not unique`)
+        return
+      }
+      const script = document.createElement('script')
+      script.src = url
+      script.async = true
+      script.id = id
+      script.onload = () => {
+        resolve()
+      }
+      script.onerror = (err) => {
+        reject(err)
+      }
+      document.body.appendChild(script)
+    })
+  }
+  return promise
+}