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Our HOPL paper is done—all 190 pages of it. The preprint will be posted this week.  In the meantime, here’s a little teaser. JavaScript: The First 20 Years By Allen Wirfs-Brock and Brendan Eich Introduction In 2020, the World Wide Web is ubiquitous with over a billion websites accessible from billions of Web-connected devices. Each of those devices runs a Web browser or similar program which is ab

Programming Language Standardization: Patterns for Participation Allen Wirfs-Brock Wirfs-Brock Associates, Inc allen@wirfs-brock.com Abstract. A technical design team is a group that is chartered to collectively work to develop solutions to a set of related technical problems. A standards committee is a group is that chartered to produce the normative specification for some technology. A programmi

My recent post on testing for negative 0 in JavaScript created a lot of interest.  So today, I’m going to talk about another bit of JavaScript obscurity that was also inspired by a Twitter thread. I recently noticed this tweet go by: This was obviously a trick question.  Presumably some programmer expected this expression to produce an array like [1, 2, 3] and it doesn’t. Why not? What does it act