style: format code and docs with prettier

Author: AE-Hertz

solution/0200-0299/0273.Integer to English Words/README_EN.md

@@ -349,56 +349,67 @@ class Solution {
 
 <!-- tabs:start -->
 
-#### JavaScript 
+#### JavaScript
 
 ```js
 /**
  * @param {number} num
  * @return {string}
  */
 const lessThanTwenty = [
-  "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten",
-  "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"
+    'Zero',
+    'One',
+    'Two',
+    'Three',
+    'Four',
+    'Five',
+    'Six',
+    'Seven',
+    'Eight',
+    'Nine',
+    'Ten',
+    'Eleven',
+    'Twelve',
+    'Thirteen',
+    'Fourteen',
+    'Fifteen',
+    'Sixteen',
+    'Seventeen',
+    'Eighteen',
+    'Nineteen',
 ];
 
-const tens = [
-  "", "", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"
-];
+const tens = ['', '', 'Twenty', 'Thirty', 'Forty', 'Fifty', 'Sixty', 'Seventy', 'Eighty', 'Ninety'];
 
-const thousands = [
-  "", "Thousand", "Million", "Billion"
-];
+const thousands = ['', 'Thousand', 'Million', 'Billion'];
 
 function numberToWords(num) {
-  if (num === 0) return "Zero";
+    if (num === 0) return 'Zero';
 
-  let result = "";
-  let i = 0;
+    let result = '';
+    let i = 0;
 
-  while (num > 0) {
-    if (num % 1000 !== 0) {
-      result = helper(num % 1000) + thousands[i] + " " + result;
+    while (num > 0) {
+        if (num % 1000 !== 0) {
+            result = helper(num % 1000) + thousands[i] + ' ' + result;
+        }
+        num = Math.floor(num / 1000);
+        i++;
     }
-    num = Math.floor(num / 1000);
-    i++;
-  }
 
-  return result.trim();
+    return result.trim();
 }
 
 function helper(num) {
-  if (num === 0) return "";
-  else if (num < 20) return lessThanTwenty[num] + " ";
-  else if (num < 100) return tens[Math.floor(num / 10)] + " " + helper(num % 10);
-  else return lessThanTwenty[Math.floor(num / 100)] + " Hundred " + helper(num % 100);
+    if (num === 0) return '';
+    else if (num < 20) return lessThanTwenty[num] + ' ';
+    else if (num < 100) return tens[Math.floor(num / 10)] + ' ' + helper(num % 10);
+    else return lessThanTwenty[Math.floor(num / 100)] + ' Hundred ' + helper(num % 100);
 }
 ```
 
 <!-- tabs:end -->
 
-
 <!-- solution:end -->
 
-
-
 <!-- problem:end -->

solution/0200-0299/0273.Integer to English Words/Solution.js

@@ -3,38 +3,52 @@
  * @return {string}
  */
 const lessThanTwenty = [
-  "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten",
-  "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"
+    'Zero',
+    'One',
+    'Two',
+    'Three',
+    'Four',
+    'Five',
+    'Six',
+    'Seven',
+    'Eight',
+    'Nine',
+    'Ten',
+    'Eleven',
+    'Twelve',
+    'Thirteen',
+    'Fourteen',
+    'Fifteen',
+    'Sixteen',
+    'Seventeen',
+    'Eighteen',
+    'Nineteen',
 ];
 
-const tens = [
-  "", "", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"
-];
+const tens = ['', '', 'Twenty', 'Thirty', 'Forty', 'Fifty', 'Sixty', 'Seventy', 'Eighty', 'Ninety'];
 
-const thousands = [
-  "", "Thousand", "Million", "Billion"
-];
+const thousands = ['', 'Thousand', 'Million', 'Billion'];
 
 function numberToWords(num) {
-  if (num === 0) return "Zero";
+    if (num === 0) return 'Zero';
 
-  let result = "";
-  let i = 0;
+    let result = '';
+    let i = 0;
 
-  while (num > 0) {
-    if (num % 1000 !== 0) {
-      result = helper(num % 1000) + thousands[i] + " " + result;
+    while (num > 0) {
+        if (num % 1000 !== 0) {
+            result = helper(num % 1000) + thousands[i] + ' ' + result;
+        }
+        num = Math.floor(num / 1000);
+        i++;
     }
-    num = Math.floor(num / 1000);
-    i++;
-  }
 
-  return result.trim();
+    return result.trim();
 }
 
 function helper(num) {
-  if (num === 0) return "";
-  else if (num < 20) return lessThanTwenty[num] + " ";
-  else if (num < 100) return tens[Math.floor(num / 10)] + " " + helper(num % 10);
-  else return lessThanTwenty[Math.floor(num / 100)] + " Hundred " + helper(num % 100);
+    if (num === 0) return '';
+    else if (num < 20) return lessThanTwenty[num] + ' ';
+    else if (num < 100) return tens[Math.floor(num / 10)] + ' ' + helper(num % 10);
+    else return lessThanTwenty[Math.floor(num / 100)] + ' Hundred ' + helper(num % 100);
 }