let x = [1, 2, 3];

let y = [1, 2, 3];

let z = y;

// lets see values

console.log(x); // [1, 2, 3]

console.log(y); // [1, 2, 3]

console.log(z); // [1, 2, 3]

// we sow that values of three array are same/ equal

// now try equality and strict equality test

console.log(x==y); //false

console.log(x===y); //false

console.log(x==z); //false

console.log(x===z); //false

console.log(y==z); //true

console.log(y===z); //true

// above, i sow that only y and z equals. well of course x is a different array even the value is same.

// i understood that i did not tested equality of values!! :)

// now i want to see y and z assigns each other

z.push(4);

console.log(y); //[1, 2, 3, 4]

// we can see values of x and z equals

console.log(x[0,1,2]==z[0,1,2]); //true