exprees

introduction
Making avery part of contact list
     >without the data base part

SECOND PART
 Creating a contact list
  
  need to make a array
          var contactList =[
               {name : "narendra "
                 mobile :"929"},
                     {..},
                     {..}
                            ]
  how can i pass this to funtion
     example
       app.get('/',function(req , res))
 so  
what  learn is that 
          http request = product/items/1
     
     various methods
        1.    get -> product/items/1
              means i want to show all the details availble at this point
               or from the resource
        2.   put-> product/items/1
              means i want to upadate this url
        3. post->
            means i want to add resources at this point
        
        4.patch ->
           mean i want to upadate a small segment
    finaly
       app.get('/',function(req , res){
         return res.render('home' ,{
           title: "contact List",
           contact_list:contactList
         })
       });
  
  so what we learn is that to make a dynamic contact list where we don't need to 
  write things again and again just need to use for loop
  by using ejs 
  
         how to write for loop in ejs
         <%for(let i of contact_list )
          %>
        
          <%
         %>
   
  3. SENDING DATA TO THE SERVER
      
        Now what we have :
           1. we have a list which we can show in the screen
          
          what we want to do
           1. to add somethig
           2. to delete something
           3.to make it more dynamic
   so what we are going to do in this video
         1.creating form to take data from the user
         2.reading that from and adding this to present contact list
         
    
    creating a form
          <form action ="" method ="POST">
             <input type ="text" name ="name" placeholder ="Enter your name">
             <input type="Number" name ="Phone" placeholder ="Enter your phone no">
               
            <button type="submit">Add contact</button>
            
          </form>   
        
      
         
      makingg is dynamic
      Parser
               
      Middle ware
               app.use