Merge pull request #14 from machad0/replacing-ifs

Removing Ifs for a more declarative style

Author: matheusml

README.md

@@ -109,11 +109,12 @@ Whenever a function calls itself, creating a loop.
 1) Countdown
 
 ```javascript
+
 const countdown = num => {
-    if (num > 0) {
-        console.log(num);
-        countdown(num - 1);
-    }
+  console.log(num)
+  num < 1
+  ? num
+  : countdown(num - 1)
 }
 
 countdown(5);
@@ -123,19 +124,17 @@ countdown(5);
 3
 2
 1
+0
 */
 ```
 
 2) Factorial
 
 ```javascript
-const factorial = num => {
-    if (num <= 0) {
-        return 1;
-    } else {
-        return (num * factorial(num - 1));
-    }
-}
+const factorial = (num) =>
+  num <= 0
+  ? 1
+  : n * factorial(num - 1)
 
 factorial(5);
 //120

examples.js

@@ -119,10 +119,10 @@ ajax({ }, "additional", "data", "hello");
 
 // Recursion
 let countdown = (num) => {
-  if (num > 0) {
     console.log(num);
-    countdown(num - 1);
-  }
+    num < 1
+    ? num
+    : countdown(num -1);
 }
 
 let counting = countdown(5);
@@ -134,12 +134,10 @@ let counting = countdown(5);
 1
 */
 
-let factorial = (num) => {
-  if (num <= 0) {
-    return 1;
-  } else {
-    return (num * factorial(num - 1));
-  }
-};
+let factorial = (num) =>
+  num <= 0
+  ? 1
+  : n * factorial(num - 1);
+
 console.log(factorial(5));
 //120

translations/pt-BR/README.md

@@ -105,10 +105,10 @@ Sempre que uma função chama a si mesmo, criando um loop.
 
 ```javascript
 const countdown = num => {
-    if (num > 0) {
-        console.log(num);
-        countdown(num - 1);
-    }
+  console.log(num)
+  num < 1
+  ? num
+  : countdown(num - 1)
 }
 
 countdown(5);
@@ -118,19 +118,17 @@ countdown(5);
 3
 2
 1
+0
 */
 ```
 
 2) Calculando uma fatorial
 
 ```javascript
-const factorial = num => {
-    if (num <= 0) {
-        return 1;
-    } else {
-        return (num * factorial(num - 1));
-    }
-}
+const factorial = (num) =>
+  num <= 0
+  ? 1
+  : n * factorial(num - 1)
 
 factorial(5);
 //120

translations/zh-CN/README.md

@@ -111,10 +111,10 @@ totalGrades
 
 ```javascript
 const countdown = num => {
-    if (num > 0) {
-        console.log(num);
-        countdown(num - 1);
-    }
+  console.log(num)
+  num < 1
+  ? num
+  : countdown(num - 1)
 }
 
 countdown(5);
@@ -124,19 +124,17 @@ countdown(5);
 3
 2
 1
+0
 */
 ```
 
 2) 阶乘
 
 ```javascript
-const factorial = num => {
-    if (num <= 0) {
-        return 1;
-    } else {
-        return (num * factorial(num - 1));
-    }
-}
+const factorial = (num) =>
+  num <= 0
+  ? 1
+  : n * factorial(num - 1)
 
 factorial(5);
 //120