Hello, I was doing a simple task on javascript info/ifelse. The tasks section, the 3rd one(show the sign). Although the solution is right there but I tried taking a different approach but it doesn’t work:
my codepen work
It only works when I change the strict equality sign from “===” to “==”. Why is that? Can someone pls help me out?
So a few things here, as it sounds like you already know, the strict equality operator (===) checks both the type and the value as to where the equality operator (==) only checks the value even if the types are different.
because you used the window.prompt() method, despite asking the user to input a number, you are actually getting back that number in the form of a string.
Check Window.prompt() for the return value (it’s always a string).
So the way that you could avoid a string being returned is to make sure that you assign it to a number instead by doing:
Number(prompt(‘What Number?’, 1));
By doing it that way you will make sure to return a number, therefore being able to use the strict equality operator in your if statements!
Values of other types can be converted to numbers using the Number() function.
Here is an example of it at work:
CodePen
I get it now thanks to you. I really appreciate.