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JavaScript

Posted by Stu Cowley
Stu Cowley
26,287 Points

Parsing Numbers from Strings Code Challenge

Hey guys,

So I am left scratching my head on the Parsing Numbers From Strings Code Challenge.

In a nutshell I have absolutely no idea how to do this! Could someone please explain this to me in simple terms.

I have tried

var numWidth = parseInt(640, 10);

*Sorry having problems with the code block command :-*

I will re-watch the Parsing Numbers from Strings video till I understand this throughly

Thanking you in advanced

Stu :)

4 Answers

Victor Arellano
Victor Arellano
12,045 Points
Victor Arellano
Victor Arellano
12,045 Points

Hello Stu.

You gotta pass the variable as an argument to the parseInt function:

var numWidth = parseInt(boxWidth, 10);

Agon Bina
PLUS
Agon Bina
Courses Plus Student 1,308 Points
Agon Bina
Agon Bina
Courses Plus Student 1,308 Points

I think parseInt takes a string as the first argument, and the base as the second.

So in your case, var numWidth = parseInt("640", 10); // meaning I want to parse the string "640" to an integer of numbers with base 10 (ie, 0, 1, 2, ... 9)

Stu Cowley
Stu Cowley
26,287 Points
Stu Cowley
Stu Cowley
26,287 Points

Hey Agon!

That has helped! I declare the string of "640" and the integer is 10, however I still get the same error which is

Sorry! That's not correct. A correct answer will use the form: var numVariable = parseInt(stringVariable, radix);

What does this error message mean!?

Stu :)

Stu Cowley
Stu Cowley
26,287 Points
Stu Cowley
Stu Cowley
26,287 Points

Hello Victor,

Once agin you have saved me loads of stress! This is the first code challenge since I first signed up in June that I have been completely stumped on.

Yes that worked perfectly and your explanation helped a greatly!!

Stu :D