Merge pull request #4 from anasmak04/master

add problem 39

Author: mehediislamripon

README.md

@@ -40,5 +40,6 @@
 | Problem - 36 | [Rock Paper Scissors](https://github.com/anasmak04/Problem-solving-with-JavaScript/blob/master/problem-36.js) |
 | Problem - 37 | [sum of an array](https://github.com/anasmak04/Problem-solving-with-JavaScript/blob/master/problem-37.js) |
 | Problem - 38 | [biggest number of an array](https://github.com/anasmak04/Problem-solving-with-JavaScript/blob/master/problem-38.js) |
+| Problem - 39 | [sum of n numbers with one argument ](https://github.com/anasmak04/Problem-solving-with-JavaScript/blob/master/problem-39.js) |
 
-<!-- | Problem - 39 | | -->
+<!-- | Problem - 40 | | -->

problem-39.js

@@ -0,0 +1,11 @@
+// create a function that take one argument and return sum n numbers
+
+
+function sum(...args){
+ return args.reduce((a,b) => {
+ return a + b;
+ },0)
+}
+
+let result = sum(2,1,5,6,8);
+console.log(result);