fix: getLatestVersion()

get-latest-version.js

@@ -1,32 +1,24 @@
-let getLatestVersion = function() {
+function getLatestVersion() {
   return new Promise((resolve, reject) => {
     // if (typeof milliseconds !== "number") {
     //   throw new Error("milleseconds not a number");
     // }
 
-    const xmlHttpRequest = new XMLHttpRequest();
-    xmlHttpRequest.onreadystatechange = function() {
-      if (this.readyState == 4 && this.status == 200) {
-        if (this.response) {
-          const latestURL = this.response["assets"][0].browser_download_url;
-          console.log(latestURL);
-          const latestVersion = latestURL.match(/(\d+).(\d+).(\d+)/g)[0];
-          console.log(latestVersion);
-          return latestVersion;
-        }
+    const xhr = new XMLHttpRequest();
+    const url = "https://api.github.com/repos/gohugoio/hugo/releases/latest";
+    xhr.open("GET", url);
+    xhr.send();
+
+    xhr.onreadystatechange = function() {
+      if (xhr.readyState === 4 && xhr.status === 200) {
+        const result = JSON.parse(xhr.responseText);
+        const latestURL = result["assets"][0].browser_download_url;
+        const latestVersion = latestURL.match(/(\d+).(\d+).(\d+)/g)[0];
+
+        resolve(latestVersion);
       }
     };
-
-    xmlHttpRequest.open(
-      "GET",
-      "https://api.github.com/repos/gohugoio/hugo/releases/latest",
-      true
-    );
-    xmlHttpRequest.responseType = "json";
-    xmlHttpRequest.send(null);
-
-    resolve(version);
   });
-};
+}
 
 module.exports = getLatestVersion;