AtoB

What will be the output?
let x = [1,2,3];
let [y,...z] = x;
console.log(typeof z);

2 years ago | [YT] | 1

AtoB

What will be the output?
let x = { a: { b : 1 } };
let y = JSON.parse(JSON.stringify(x));
y.a.b = 10;
console.log(x.a.b);

2 years ago | [YT] | 1

AtoB

What will be the output?
let x = [1, 2, 3];
x[10] = 10;
console.log(x.length);

2 years ago | [YT] | 1

AtoB

String Methods

2 years ago | [YT] | 2

AtoB

What will be the output?
let x = ['a', 'b', 'c'];
let y = x.join('-');
console.log(y);

2 years ago | [YT] | 0

AtoB

What will be the output?
let x = [1, 2, 3];
let y = x.join("-").split("-");
console.log(y)

2 years ago | [YT] | 0

AtoB

What will be the output?
let x = [1, 2, 3];
let y = x.reduce((a, b) => {
return a * b;
},2);
console.log(y);

2 years ago | [YT] | 0

AtoB

What will be the output?
var num = 8;
var num = 10;
console.log(num);

2 years ago | [YT] | 1

AtoB

What will be the output?
let x = 0;
console.log(x++);
console.log(++x);

2 years ago | [YT] | 1

AtoB

What will be the output?
let x = [1, 2, 3];
let y = x.indexOf(2) * 2;
console.log(y);

2 years ago | [YT] | 0