Improve naming

Author: tshemsedinov

JavaScript/4-for-in.js

@@ -1,15 +1,15 @@
 'use strict';
 
-const arr = [7, 10, 1, 5, 2];
-arr.field = 'Value';
+const numbers = [7, 10, 1, 5, 2];
+numbers.field = 'Value';
 
-for (const i in arr) {
-  const value = arr[i];
+for (const i in numbers) {
+  const value = numbers[i];
   console.log(i, value);
 }
 
 let j, value;
-for (j in arr) {
-  value = arr[j];
+for (j in numbers) {
+  value = numbers[j];
   console.log(j, value);
 }

JavaScript/5-for-of.js

@@ -1,8 +1,8 @@
 'use strict';
 
-const arr = [7, 10, 1, 5, 2];
-arr.field = 'Value';
+const numbers = [7, 10, 1, 5, 2];
+numbers.field = 'Value';
 
-for (const i of arr) {
+for (const i of numbers) {
   console.log(i);
 }

JavaScript/6-break.js

@@ -11,4 +11,3 @@ label1: {
     break label2;
   }
 }
-

JavaScript/8-forEach.js

@@ -1,15 +1,15 @@
 'use strict';
 
-const a = [7, 10, 1, 5, 2];
+const numbers = [7, 10, 1, 5, 2];
 
-a.forEach((item, i, arr) => {
+numbers.forEach((item, i, arr) => {
   console.log(i, arr, item);
 });
 
-console.log();
-
-[7, 10, 1].forEach(console.log);
-
-console.log();
+[7, 10, 1].forEach(x => {
+  console.log(x);
+});
 
 [7, 10, 1].forEach(x => console.log(x));
+
+[7, 10, 1].forEach(console.log);

JavaScript/9-map.js

@@ -1,5 +1,7 @@
 'use strict';
 
-const log = s => console.log(s);
+const log = s => {
+  console.log(s);
+};
 
 [7, 10, 1, 5, 2].map(x => x * 2).map(log);