Original JavaScript
Original JavaScript
Original JavaScript
Original JavaScript
Original JavaScript

[1] Lisp systems typically provide features to aid the user in formatting expressions. Two especially useful features are one that automatically indents to the proper pretty-print position whenever a new line is started and one that highlights the matching left parenthesis whenever a right parenthesis is typed.
[2] Lisp obeys the convention that every expression has a value. This convention, together with the old reputation of Lisp as an inefficient language, is the source of the quip by Alan Perlis (paraphrasing Oscar Wilde) that Lisp programmers know the value of everything but the cost of nothing.
[3] JavaScript obeys the convention that every statement has a value (see exercise 4.13). This convention, together with the reputation of JavaScript programmers as not caring about efficiency, leads us to paraphrase a quip on Lisp programmers by Alan Perlis (who was himself paraphrasing Oscar Wilde): JavaScript programmers know the value of everything but the cost of nothing.
1.1.1  Expressions