Merge pull request #6 from HariAcidReign/restyled/pull-5

Restyle Definition of Undefined is Missing

Notes/3-Hoisting.md

@@ -16,15 +16,15 @@ console.log(x);
 
 Output:
 
->  Namaste JavaScript
+> Namaste JavaScript
 
->  7
+> 7
 
 ```
 // code example 2
 
-getName();      // in most languages, both lines which are above their declaration will give error. Not in JS though. 
-console.log(x); 
+getName();      // in most languages, both lines which are above their declaration will give error. Not in JS though.
+console.log(x);
 
 var x = 7;
 
@@ -34,10 +34,11 @@ function getName(){
 
 ```
 
- Output:
->  Namaste JavaScript
+Output:
+
+> Namaste JavaScript
 
->  undefined
+> undefined
 
 ```
 // code example 3
@@ -53,14 +54,18 @@ function getName(){
 
 Output:
 
->  Namaste JavaScript
+> Namaste JavaScript
 
->  Error: x is not defined   // note that not defined here and "undefined" in sample 2 are totally different.
+> Error: x is not defined // note that not defined here and "undefined" in
+> sample 2 are totally different.
 
-- Not defined: We have not initialised the value for variable anywhere in the entire code and in memory space. 
-- Undefined: 
+- Not defined: We have not initialised the value for variable anywhere in the
+  entire code and in memory space.
+- Undefined: It is a placeholder that is assigned to a variable by the
+  Javascript Engine until the variable is assigned with some other value.
 
-__Hoisting__ is a concept which enables us to extract values of variables and functions even before initialising/assigning value without getting *error*
+**Hoisting** is a concept which enables us to extract values of variables and
+functions even before initialising/assigning value without getting _error_
 
 ```
 
@@ -78,9 +83,10 @@ console.log(getName)
 Output:
 
 > f getName(){
+
       console.log("Namaste JavaScript);
-  }
 
+}
 
 ```
 
@@ -99,13 +105,16 @@ function getName(){
 ```
 
 Output:
->  Namaste JavaScript
 
->  undefined
+> Namaste JavaScript
+
+> undefined
+
+> f getName(){
 
->  f getName(){
       console.log("Namaste JavaScript);
-  }
+
+}
 
 ```
 // code example 6
@@ -116,26 +125,22 @@ var getName = function () {
     console.log("Namaste JavaScript");
 }
 
-var getName = () => {  // use fat arrow function  
+var getName = () => {  // use fat arrow function
     console.log("Namaste JavaScript");
 }
 
 ```
 
 Output:
 
->  undefined //it is because they behave as variable and not function. 
+> undefined //it is because they behave as variable and not function.
 
 ---
 
-__REASON OF WEIRDNESS__
-
-* The answer lies in the Global Exection Context. In the memory phase, the variables will be initialized as *undefined* and functions will get the whole function code in their memory.
-
-* This is the reason why we are getting these outputs.
-
-
-
-
+**REASON OF WEIRDNESS**
 
+- The answer lies in the Global Exection Context. In the memory phase, the
+  variables will be initialized as _undefined_ and functions will get the whole
+  function code in their memory.
 
+- This is the reason why we are getting these outputs.