which programming language to learn code example

Example 1: what programming language should i learn first

Depends on what you want to do. You can do whatever with whatever.
Here is a list :-
1. Web developement - HTML,CSS,JS,Golang
2. App developement - Java,Kotlin,Dart
3. Game Developement - c,C++,C#
4. Computer Graphics - Opengl,Webgl
5. Scientific Computing - MATLAB,Julia,Python
6. Embedded Developement - C

Example 2: what is the best coding language to learn

Many people say python is the top language to learn. I strongly agree,
but a new programmer would benefit from learning basic concepts from lower
level languages like C++, Java, or C#. Also, learning HTML and CSS will give
the ability to create something with some sort of UI other than a 
command prompt.