I need help

the challenge states: A variable named "boxWidth" already exists with a value of "640px". Create a new variable named "numWidth" and use the "parseInt" method to extract the numeric value from boxWidth's string value.

so first you need to create a new variable and assign it the value of calling the parseInt function and passing it the boxWidth variable as an argument and 10 as the other argument for the radix.

hint: you can call the parseInt function like this:

parseInt(someString, 10)

where someString is a variable that you want to parse.

Here is the documentation on the parseInt function

var numWidth = parseInt("640px",10); I entered this but it keeps saying im wrong. What am I missing?