When should <<endl be used ?

Question

I'm not familiar with coding at all, during the tutorial in c++ basics it shows this :

cout<< x << endl;

but than later doesnt continue to use endline. I know the tutorial is just examples for basic understanding but still brings me to the question, when should I be using it ?

Answer 1

When you want to flush the stream and start a new line. Otherwise use '\n' for just starting a new line, as it it much faster in terms of execution speed