‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

The JavaScript in Listing B handles this task. The function is called when the user submits the form. This may be handled with an HTML button’s onSubmit event: ...

jsFiddle lets developers play with the three core elements of Web development. Check out this powerful application for rapid prototyping and testing.

So, I have an SVG graphic embedded in an html page.within the svg are some mouseover events that do some re-drawing stuff.Now I want the containing page to also make some updates as a result of ...