How can I use a function inside another function for onclick() event?

Question

function calculator(){
function sum(){
...........;
}
}

How can I make the "onclick()" event to go to "sum()"?
Is it possible?

Answer 1

Sure that is possible, you will have to call calculator() and pass it a value that will be used to determine which function is called within itself. Good luck.

https://code.sololearn.com/WgwkqRoaDp3Y/#html

Answer 2

ODLNT Thanks that's exactly what I wanted.

Answer 3

Ok then can I make them separately and call "sum()" inside the "calculator()" function?

Answer 4

Does your sum() function has to be situated within calculator()? It is not possible to reach sum this way.

Answer 5

if you return the function from function then you can call it from outside other wise you have to call it from inside.

method 1 shows how to return function from function and method 2 shows normal way.

https://code.sololearn.com/WXFnZqy0Ku68/?ref=app
https://code.sololearn.com/WNQ8apeKIpxD/?ref=app

Answer 6

How to Call Multiple JavaScript Functions in onClick Event

Answer: Use the addEventListener() Method

If you want to call or execute multiple functions in a single click event of a button, you can use the JavaScript addEventListener() method, like this:
<script>

// Defining custom functions

function sayHello(){

alert("Hello World! sayHello() function executed successfully!");

}

function sayHi(){

alert("Hi There! sayHi() function executed successfully!");

}

// Selecting button element

var btn = document.getElementById("myBtn");

// Assigning event listeners to the button

btn.addEventListener("click", sayHello);

btn.addEventListener("click", sayHi);

</script>

See the tutorial on JavaScript event listeners to learn more attaching multiple event handlers.

Alternatively, you can also call more than one JavaScript function in one onclick event.

Answer 7

https://idratherbewriting.com/events-and-listeners-javascript/

i think this will help

Answer 8

YG111 You're welcome.