I have some questions about the way to assign values to the std::array

I'm learning C++ on codesdope.com and I have read a document on another website, learncpp.com. But these two websites have different ways to assign values ​​to the array.

//codesdope.com

std::array<int,5> n  1;

//learncpp.com

std::array<int,5> n = {1,2,3,4,5};

Which way is more accurate? Which way should I choose? What is the difference between them?