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# 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

Hello Stu.

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

`var numWidth = parseInt(boxWidth, 10);`

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)

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 :)

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