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JavaScript

Posted by Ramesh Kunwar
Ramesh Kunwar
Courses Plus Student 4,066 Points

function and dom

alertbox.addEventListener("click" , ()=>{ what is the use of arrow function here?

Cooper Runstein
Cooper Runstein
11,850 Points
Cooper Runstein
Cooper Runstein
11,850 Points

Are you asking what the function's purpose is, or are you asking specifically why an arrow function was used?

Ramesh Kunwar
Ramesh Kunwar
Courses Plus Student 4,066 Points

what is the purpose of function

1 Answer

Chloé Claes
Chloé Claes
19,451 Points
Chloé Claes
Chloé Claes
19,451 Points

You define the purpose of a function. You create them or use them how you see fit.
If you define nothing it will do nothing, if you make it run loops of specific code it wil loop your code. 

function doSomething (x) {
 return  x*2;
}
doSomething(4); // returns 8

// Anonymous functions have no name, you just push into it the code it needs to run there and then.
document.addEventListener("click", function(){
    document.getElementById("demo").innerHTML = "Hello World";
});

Hope this helps, Cc