how to create function in bash script code example

Example 1: bash function

function hello {
	echo Hello
}
hello
function e {
	echo $1  # $1 is the first argument
}
e Hello

Example 2: function in bash

#FIRST METHOD
Hello () {  
  echo 'Hello Wordl'  
}  
Hello 

#SECOND METHOD
function Hello {
 echo 'Hello Wordl'
}
Hello