In this tutorial will teach you what is the Different between Function and Arrow Function. This is very impotent one.
if you want to be a mastering in Node Js.
Normally Create the function this way
1 2 3 4 5 | function myTest1() // Function Name { console.log("test function work") } myTest1(); // Print the Function |
Create the function pass the parameters without datatype in Javascript
1 2 3 4 5 6 7 | function myTest(name,course,age) // <strong>Create the function pass the parameters</strong> { console.log(name); console.log(course); console.log(age); } myTest("John","NodeJs","35"); // Print the Function |
Create the function assign to the variable
1 2 3 4 5 6 7 | var myTestfn = function myTest(name,course,age) //assign to the variable myTestfn { console.log(name); console.log(course); console.log(age); } myTestfn ("Peter","NodeJs","35"); //Print the variable |
Now lets convert the function into Arrow Function
look at this line of the code var myTestfn = function myTest(name,course,age)
Remove function keyword and function name myTest and put the => arrow
var mynewTest = (name,course,age) =>
1 2 3 4 5 6 7 | var mynewTest = (name,course,age) => { console.log(name); console.log(course); console.log(age); } mynewTest("Peter","Java","25"); |
i have attached the video link below. which will do this tutorials step by step.
