Is var a = 5 equivalent to var a = "5" ?

Question

Note it's related to JavaScript

Answer 1

var a = 5;
assigns the integer value 5 to the variable a.
While,
var a = "5"
assigns the string value of 5 to the variable a.

So, one is an int and one is a string.
Javascript still has strings, even though you assign everything to a var.

Answer 2

Also you can simplify those if statements alot from lines 63-172. You could probably do something along the lines of this:

if(counter == 0)
num1 = x;
else if(counter == 1)
num2 = x;
else if(counter == 2)
num3 = x;
else if(counter == 3)
num4 = x;

Then:
if(counter < 4)
counter++;

Instead of 100+ lines of code 😝.

If you want to simplify it even FURTHER, the nums can be an array.
Then you can do something along the lines of:

if(counter < 4)
nums[counter++] = x;

To get the same result with 2 lines of code. 2 lines is easier to debug than over 100. So, I suggest trying this; although you will need to change some other things to work with the array.

Answer 3

The value of y is always NaN. You initialized it when num1+num2+.. are null.
You can always do things like:
alert(y); to do debugging.

You also have 2 variables called y 😝

If you wrote
y = ""+num1+num2+num3+num4;
In the check function, before comparing, this could fix your problems.
However, you don't even really use variables num1, num2 etc..
In the function where the user presses a button you create new vars
var num1 = "1"; etc..
So, the global variables num1, num2 etc.. are still null. So, y = ""+num1+... will still be undefined.

Answer 4

It's not really as simple as yes or no with this question.

var a = 5;
var b = '5';

document.write(a==b); /*true*/
document.write('<br>');
document.write(a===b); /*false*/

a==b JavaScript will see the values here as equal so it will return true.

a===b here we also do a type comparison, and since one is a Number and the other is a String it will return false.

Answer 5

https://code.sololearn.com/WTss4tksLhuC/?ref=app
can you explain why am I not winning even after inputting the right answer

Answer 6

You can parse (convert) things from integers to strings and vise versa.
https://www.w3schools.com/jsref/jsref_parseint.asp
https://www.w3schools.com/jsref/jsref_string.asp

Answer 7

Yes

Answer 8

thanks well that's lot of mistakes😀😀 I will rectify them

Answer 9

oh very important info thx

Answer 10

alright thx , but is their a way I can assign the same variable to string "5" and integer 5

Answer 11

can I use the number keyword?

Answer 12

Woah lol 2 lines man that's so compact I will do it once I complete this project

Answer 13

I checked it and it with you debugging method of alerting y it says undefined 4 times

Answer 14

I just recorded an important observation if you set the variable nums outside the assign function as (whichever no. u want) it updates that no. and not the no. set in the function