refactor(scrape.js): simplify the code

src/scrape.js

@@ -1,54 +1,30 @@
 const fs = require('fs')
 const got = require('got')
-const jsdom = require("jsdom")
-const { JSDOM } = jsdom
+const { JSDOM } = require("jsdom")
 
 const url= 'https://www.iana.org/domains/root/db'
 
 got(url).then(response => {
     const dom = new JSDOM(response.body)
-
-    // select element
     const selectDomain = dom.window.document.querySelectorAll('table td:nth-child(1) span a')
     const selectType = dom.window.document.querySelectorAll('table tr td:nth-child(2)')
     const selectTldManager = dom.window.document.querySelectorAll('table tr td:nth-child(3)')
 
-    const domainArray = []
-    selectDomain.forEach(fistColumn => {
-      domainArray.push(fistColumn.textContent)
-    });
-
-    const typeArray = []
-    selectType.forEach(secondColumn => {
-      typeArray.push(secondColumn.textContent)
-    });
-
-    const managerArray = []
-    selectTldManager.forEach(thirdColumn => {
-      managerArray.push(thirdColumn.textContent)
-    });
-
-    // compile all object into json format
-    const compileData = []
-    domainArray.forEach((item, index)  => {
-      const row = {
-        'domain': domainArray[index],
-        'type': typeArray[index],
-        'tldManager' : managerArray[index]
-      }
-      compileData.push(row)
+    const compileData = Array.from(selectDomain).map((item, index) => {
+        return {
+            'domain': item.textContent,
+            'type': selectType[index].textContent,
+            'tldManager' : selectTldManager[index].textContent
+        }
     })
 
-    const dataJSON = JSON.stringify(compileData)
-    // console.log(dataJSON)
-
-    fs.writeFile('../public/iana-tld.json', dataJSON, err => {
-      if (err) {
-          console.log('Error writing file', err)
-      } else {
-          console.log('Successfully wrote file')
-      }
-  })
+    fs.writeFile('./public/iana-tld.json', JSON.stringify(compileData), err => {
+        if (err) {
+            console.log('Error writing file', err)
+        } else {
+            console.log('Successfully wrote file')
+        }
+    })
 }).catch(err => {
     console.log(err)
 })