EJS Notes.txt

*** Templating using EJS 
	EJS Setup and simple structure
	- Firs you sould have install EJS using (npm i EJS ) after that you have to making a new directory with name of (views) and put a file (index.ejs) in it and set up you template file using Html 
	- In ejs template file you can define you template and variable with (<%= %>) this is markeup vaiable which value is come from JS File 
	- Now you can simple pass the value (  res.render('list', {__markupvariable: __passingVar}); )
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*** Running JS code in template File
	- using scropted escape tag( <% %> ) you can make control follow in you template 
	- control fllow is like if else for loop etc
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*** CSS File attached	
	- if you want to aplly css in ejs file you shold be deine explicitly 
	- make (public) folder and put your css and imgs init. On server side
	- Now you can apply your css 
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*** multiple templating vs multiple layout
	- we can use same template of EJS file with different titles with  same structre and style
	- But we can also make differenet layout with same style 
	- to make diff layout we can make new hedaer.ejs footer.ejs in diff files 	
	- like footer.ejs and we can use it any ejs file like this -> <%- include("footer.ejs) -%>
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*** Node Module Exports & Passing functions and data btw files 	
	- We can make different js file and make functions init and return the value 
	- By using (module.exports = __funName) we can export functions & data & strings & objects as well
	- In our (app.js) we can import like this ( const data = require(__dirname + "fileName.js"));
	- and now by data.__funName we can call our functions
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*** const Array & and variables 
	- we can push value in const array but we cant declare again with same name again
	- same for const object we cant intialze again but we can change the value of key in it