JavaScript.Next (or more accurately, the evolution of JavaScript through standards like ECMAScript) introduced optional chaining (`?.`) which prevents errors when accessing properties of potentially null or undefined objects. elaborate
The Kazakh alphabet has been written using three different scripts throughout its history: Arabic, Cyrillic, and Latin. elaborate
WebAssembly modules can be loaded and executed concurrently, improving the performance of web applications, especially those with complex calculations. elaborate
PostScript's page description language was initially designed to control the output of laser printers, not to be a general-purpose programming language, but its Turing completeness made it surprisingly versatile. elaborate
Swift's error handling uses a `do-catch` structure similar to other languages, but crucially, errors are *values* that can be explicitly thrown and handled, rather than exceptions abruptly interrupting execution. elaborate
C++'s `std::vector` is not guaranteed to be contiguous in memory, although it usually is in practice for performance reasons. There are niche cases where a non-contiguous implementation might be chosen. elaborate