javascriptHow come appaddress()

javascript - How come app.address() is null when HOST is set in app.listen(PORT, HOST); - Stack Overflow
When 127.0.0.1 below is omitted app.address() is not null, but when a host is set, it is null.var expre
javascriptHow come appaddress() is null when HOST is set in applisten(PORTHOST)Stack Overflow
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