Zero Ok: D30: C26

Your score is:

/ 5

1.) What is the output of this code?

const visibleLightWaves = () => {
let lightwaves = "Moonlight";
let region = "The Artic";
if (region === "The Artic") {
let lightwaves = "North Lights";
}
console.log(lightwaves);
};
visibleLightWaves();

by Zohaib

Error

Moonlight

The Artic

North Lights

2.) What is the output of this code?

var my_set = new Set([NaN, undefined,, null]);
console.log(my_set.size);

by brains

1

2

3

4

3.) What will be alerted

var a = {};
a.name = "John";
var setName = function(obj) {
obj.name = "Richard";
return obj;
};
setName(a);
alert(a.name);

by Yuriy Krupenya

Richard

John

error

4.) What is the output of this code?

for (var i 0; i < 3; i++)
document.write(i);
for (var i 0; i < 3; i++)
document.write(i);

0101

1212

01212

012012

5.) What is the output of this code?

var bin = "1011";
function bin_to_dec(bin) {
var dec = 0;
var pow = 1;
var len = bin.length;
for (var i = len - 1; i >= 0; i--) {
dec += bin[i] * pow;
pow *= 2;
}
return dec;
}
console.log(bin_to_dec(bin));

by Jonathan Pizarra

1

2

7

11

Submit

zeroOK/D30/C26.js