console-1690434673755.log

function add(x,y){
    return x + y;
}
undefined
const addition = (x,y)=>x+y;
undefined
typeof addition;
'function'
addition(10,20);
30
const addition2 = (x,y)=>{
    console.log(x, y);
    return x+y;
}
undefined
typeof addition2;
'function'
addition2(10,20);
VM264:2 10 20
30
function xyz(){
    console.log("Xyz ");
}
undefined
xyz();
VM410:2 Xyz 
undefined
var e = new xyz();
VM410:2 Xyz 
undefined
typeof e;
'object'
e instanceof xyz;
true
function xyz(){
    console.log("Xyz ", this);
}
undefined
xyz();
VM551:2 Xyz  Window {window: Window, self: Window, document: document, name: '', location: Location, …}
undefined
var w = new xyz();
VM551:2 Xyz  xyz {}
undefined
const e = ()=>console.log("Arrow");
VM726:1 Uncaught SyntaxError: Identifier 'e' has already been declared
const e1 = ()=>console.log("Arrow");
undefined
e1();
VM730:1 Arrow
undefined
const gg = new e1();
VM788:1 Uncaught TypeError: e1 is not a constructor
    at <anonymous>:1:12
(anonymous) @ VM788:1
const e1 = ()=>console.log("Arrow ", this);
undefined
e1();
VM866:1 Arrow  Window {window: Window, self: Window, document: document, name: '', location: Location, …}
undefined
var w = new e1();
VM930:1 Uncaught TypeError: e1 is not a constructor
    at <anonymous>:1:9
(anonymous) @ VM930:1
var obj = {
    even:[],
    odd:[],
    arr:[10,9,20,3,50,70,11],
    fillEvenOdd(){
        this.arr.forEach(function(e){
            if(e%2==0){
                this.even.push(e);
            }
            else {
                this.odd.push(e);
            }
        })
    }
}
obj.fillEvenOdd();
VM1197:8 Uncaught TypeError: Cannot read properties of undefined (reading 'push')
    at <anonymous>:8:27
    at Array.forEach (<anonymous>)
    at Object.fillEvenOdd (<anonymous>:6:18)
    at <anonymous>:16:5
(anonymous) @ VM1197:8
fillEvenOdd @ VM1197:6
(anonymous) @ VM1197:16