Answer 1

if I'm not wrong cout is used for printing outputs in C++ and not Javascript.
Please use relevant tag.

Coming to your question:
"cout is C++ syntax use for displaying outputs(texts anything) on the console."

example:
cout << "Hello World";
will display
"Hello World" (without quotation) on the console.

for more details read this,
The cout object in C++ is an object of class ostream. It is used to display the output to the standard output device i.e. monitor. It is associated with the standard C output stream stdout.
src: https://www.programiz.com/cpp-programming/library-function/iostream/cout#:~:text=The%20cout%20object%20in%20C%2B%2B,standard%20C%20output%20stream%20stdout.