Java is cited because legacy backends or powerful specific backends are written in Java. So at any time in these cases any Javascript frontend dev should also be able to at least check the Java part of the API Java server to fix basic things / communicate with teammates.
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Java is cited because legacy backends or powerful specific backends are written in Java. So at any time in these cases any Javascript frontend dev should also be able to at least check the Java part of the API Java server to fix basic things / communicate with teammates.