The Webb Space Telescope uses a lot of scripts written in JavaScript

The most expensive space telescope ever built by humans uses a lot of scripts written in JavaScript, and it uses a 20-year-old version of the JS language. According to the manual of the JWST Integrated Science Instrument Module (ISIM), the software of the ISIM is controlled by the Script Processor Task (SP), which runs scripts written in JavaScript after receiving commands. JWST uses a number of pre-written scripts to perform specific tasks, using programs called script processors to interpret JS code. The language version used for the script is Nombas ScriptEase 5.00e, developed by the defunct Nombas Company, whose latest update was released in January 2003. The choice of such an ancient program is actually not surprising. The Webb Space Telescope project began in 1989 and construction began in 2004, when ScriptEase 5 was only two years old and space vehicles typically used mature rather than the latest technology.

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