Code style

Author: tshemsedinov

JavaScript/1-simple.js

@@ -4,13 +4,11 @@ function inc(a) {
   return ++a;
 }
 
-let sum = function(a, b) {
+const sum = function(a, b) {
   return a + b;
 };
 
-let max = (a, b) => {
-  return a > b ? a : b;
-};
+const max = (a, b) => (a > b ? a : b);
 
 console.log('inc(5) = ' + inc(5));
 console.log('sum(1, 3) = ' + sum(1, 3));

JavaScript/2-context.js

@@ -1,22 +1,22 @@
 'use strict';
 
-let cities = ['Athens', 'Roma', 'London', 'Beijing', 'Kiev', 'Riga'];
-let f = s => s.length;
+const cities = ['Athens', 'Roma', 'London', 'Beijing', 'Kiev', 'Riga'];
+const f = s => s.length;
 
 function f1() {
-  let cities = ['Athens', 'Roma'];
-  let f = s => s.toUpperCase();
+  const cities = ['Athens', 'Roma'];
+  const f = s => s.toUpperCase();
   console.dir({ cities });
   console.dir(cities.map(f));
 
   {
-    let f = s => s.toLowerCase();
+    const f = s => s.toLowerCase();
     console.dir({ cities });
     console.dir(cities.map(f));
   }
 
   {
-    let cities = ['London', 'Beijing', 'Kiev'];
+    const cities = ['London', 'Beijing', 'Kiev'];
     console.dir({ cities });
     console.dir(cities.map(f));
   }

JavaScript/3-abstraction.js

@@ -1,8 +1,8 @@
 'use strict';
 
-let power = Math.pow;
-let square = x => power(x, 2);
-let cube = x => power(x, 3);
+const power = Math.pow;
+const square = x => power(x, 2);
+const cube = x => power(x, 3);
 
 console.log(power(10, 2));
 console.log(square(10));

JavaScript/4-introspection.js

@@ -4,13 +4,11 @@ function inc(a) {
   return ++a;
 }
 
-let sum = function(a, b) {
+const sum = function(a, b) {
   return a + b;
 };
 
-let max = (a, b) => {
-  return a > b ? a : b;
-};
+const max = (a, b) => (a > b ? a : b);
 
 console.log('Names: ');
 console.dir({

JavaScript/6-spread.js

@@ -1,10 +1,10 @@
 'use strict';
 
-let f1 = (...args) => console.log(args);
+const f1 = (...args) => console.log(args);
 
 f1(1, 2, 3);
 
-let f2 = (...args) => {
+const f2 = (...args) => {
   args.forEach(arg => {
     if (typeof(arg) === 'object') {
       console.log(typeof(arg) + ': ' + JSON.stringify(arg));

JavaScript/7-new.js

@@ -1,6 +1,6 @@
 'use strict';
 
-let sum = new Function('a, b', 'return a + b');
+const sum = new Function('a, b', 'return a + b');
 
 console.dir({
   name: sum.name,

JavaScript/8-method.js

@@ -1,15 +1,19 @@
 'use strict';
 
-let obj1 = {
+const obj1 = {
   f1: function inc(a) {
     return ++a;
   },
   sum: function(a, b) {
     return a + b;
   },
+  inc(a) {
+    return ++a;
+  },
   max: (a, b) => {
     return a > b ? a : b;
-  }
+  },
+  min: (a, b) => (a < b ? a : b)
 };
 
 console.log('obj1.f1.name = ' + obj1.f1.name);

JavaScript/9-this.js

@@ -1,6 +1,6 @@
 'use strict';
 
-let city = {
+const city = {
   name: 'Kiev',
   year: 482,
   f1: function() {