The following is a changelog for JavaScript 1.4, which was only used for Netscape's server side JavaScript released in 1999. The old Netscape documentation can be found on archive.org.
throw
and try...catch
)in
operatorinstanceof
operatoreval()
changes (cannot be called indirectly and no longer a method of Object
)arguments
not a property of functionsFunction.arity
in favor of Function.length