Invoking function from properties

Question

Can anyone guys explain for me how to invoke a function but from the properties of an object ?

Example

Function join(array, string){
Return something ;
}

function func(array){
var obj {
name : // invoke join function here.
color : .......
}
}

Answer 1

شكرا !

Answer 2

You can invoke it the same as any function.

Here's a code example:
https://code.sololearn.com/Wm4qixw8pwgE/?ref=app