Setting up the repo

Author: Swap76

JavaScript_Advance/default_values.js

@@ -1,3 +1,9 @@
+/*
+A JavaScript function can have default parameter value.
+Using default function parameters, you can initialize parameters with default values.
+If you do not initialize a parameter with some value, then the default value of the parameter is undefined.
+*/
+
 const helpGST = (name, age) => {
   console.log(name, age);
 };
@@ -10,4 +16,14 @@ const helpGSTWithDefaultValues = (name, age = 19) => {
 
 helpGSTWithDefaultValues("Swapnil"); // Output Swapnil 19
 
-helpGSTWithDefaultValues("Vishal", 23); // Output Vishal 23
+helpGSTWithDefaultValues("Vishal", 23); // Output Vishal 23
+
+/*
+ You can also reuse default parameters to set another default parameter.
+*/
+
+const addOneToANumberAsDefault = (number1 = 1, number2 = number1 + 8) => {
+  console.log(number2);
+};
+
+addOneToANumberAsDefault(); // Output 9

README.md

@@ -6,7 +6,7 @@ This repository was made for beginners to start learning Javascript from Scratch
 
 This repository uses [Docsify](https://docsify.js.org) for generating documentation website on the fly.
 
-if you want run Docsify you must use latest version of node (now is v13.0.1) 
+If you want run Docsify you must use latest version of node (now is v13.0.1) 
 read this issue [#299](https://github.com/Swap76/Learn-JavaScript/issues/299)
 
 

default_values.js

@@ -6,7 +6,7 @@ This repository was made for beginners to start learning Javascript from Scratch
 
 This repository uses [Docsify](https://docsify.js.org) for generating documentation website on the fly.
 
-if you want run Docsify you must use latest version of node (now is v13.0.1) 
+If you want run Docsify you must use latest version of node (now is v13.0.1) 
 read this issue [#299](https://github.com/Swap76/Learn-JavaScript/issues/299)
 
 

docs/README.md

@@ -20,7 +20,6 @@
     "husky": "^3.0.8"
   },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
     "lint": "eslint '**/*.js'",
     "lint:fix": "eslint '**/*.js' --fix",
     "serve-docs": "node ./scripts/build-sidebar.js & docsify serve docs"