When Netscape hired Brendan Eich in April 1995, he was told that he had ten days to create and produce a working prototype of a programming language that would run in Netscape’s browser.
Ten days to create what we now know as JavaScript! I would say he did a pretty good job considering the time he was given.
JavaScript is continually evolving. Currently, most web browsers support JavaScript ES5, but ES6 will become the norm within the next year or two.
JavaScript ES5: Limitations and Shortcomings
This section discusses currently perceived limitations and shortcomings in JavaScript up to and including the current ...