Chapter 3 in "Structure and Interpretation of Computer Programs" (SICP) explains the environment model to evaluate scheme. That's exactly what you need to under

Chapter 3 in "Structure and Interpretation of Computer Programs" (SICP) explains the environment model to evaluate scheme. That's exactly what you need to understand javascript closures. Only read the 3.2 part, it's not long: http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-21.html#%_sec_3.2 http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-21.html...