Which came first, JavaScript or the Macintosh?

the Macintosh came first, by 11 years. Apple launched the first Macintosh, two days after the Super Bowl advert.

Side by side

JavaScript

JavaScript was written in about ten days in May 1995, shipped in Netscape Navigator 2.0 later that year, and was called LiveScript until December, when Netscape renamed it as part of a marketing deal with Sun. It has nothing to do with Java beyond some borrowed syntax. Standardisation as ECMAScript followed in 1997, and the language spent a decade being treated as a toy before it became the most widely deployed programming language in the world.

the Macintosh

The Macintosh launched in January 1984 with a graphical interface and a mouse, and beat Windows to market by almost two years. Neither invented the idea — Xerox PARC had built the Alto in 1973, and both Apple and Microsoft were working from what they had seen there. Mac OS X, the ancestor of today's macOS, arrived much later in 2001 and is Unix underneath.