изменил реквест на промис

task_1/script.js

@@ -13,24 +13,20 @@ let name_to_find = 'Kazakhstan'
 const request = (config) => {
     loader.style.display = 'flex'
     const { method, path, success, error } = config;
+    return new Promise((resolve, reject) => {
+        
+    
     const xml = new XMLHttpRequest();
-    console.log(name_to_find, config.path)
     xml.addEventListener('load', () => {
-        if (xml.status < 200 || xml.status > 399) {
-            if (xml.status === 404) {
-                error('No country with such name!');
+        if (xml.status >= 200 || xml.status > 300) {
+            const result = JSON.parse(xml.responseText);
+            resolve(result)
         }
         else {
-                error('bad response');
+            reject(this.status)
         }
         
-            return;
-        }
-        else if (xml.status === '404') {
-            console.log(xml.status);
-        }
-        const result = JSON.parse(xml.responseText);
-        success(result)
+
     });
     loader.style.display = 'none'
     xml.addEventListener('error', () => {
@@ -41,6 +37,7 @@ const request = (config) => {
     })
     xml.open(method, path);
     xml.send();
+})
 }
 
 const processResult = (result) => {
@@ -57,7 +54,6 @@ const errorHandler = (msg) => {
 
 
 const createTree = (data) => {
-    console.log(data);
     const ul = document.createElement('ul')
     for (item in data) {
         const li = document.createElement('li')
@@ -100,21 +96,6 @@ const createTree = (data) => {
 }
 
 
-const createTreefromObject = (data) => {
-    const ul = document.createElement('ul')
-    for (item in data) {
-        const li = document.createElement('li')
-        if (Array.isArray(data[item])) {
-            li.append(`${item}: `)
-            const innerUl = createTree(data[item])
-            li.append(innerUl)
-        } else {
-            li.append(`${item}: ${data[item]}`)
-        }
-        ul.append(li)
-    }
-    return ul
-}
 
 const showInfo = () => {
     if (userInput.value) {
@@ -123,10 +104,12 @@ const showInfo = () => {
     const config = {
         method: "GET",
         path: `https://restcountries.com/v2/name/${name_to_find}`,
-        success: processResult,
-        error: errorHandler
+
     }
-    request(config);
+    request(config)
+    .then(processResult)
+    .catch(errorHandler)
+        
     infoToshow.style.display = 'block'
 }
 button.addEventListener('click', showInfo)