What is the difference of '| |' and '&&' in coding?

 

Are they same or different?  

Please let me know. 

 

https://www.mql5.com/en/docs/basis/operations/rules

&&

Logical AND operation

From left to right

||

Logical OR operation

From left to right

Documentation on MQL5: Language Basics / Operations and Expressions / Precedence Rules
Documentation on MQL5: Language Basics / Operations and Expressions / Precedence Rules
  • www.mql5.com
Language Basics / Operations and Expressions / Precedence Rules - Reference on algorithmic/automated trading language for MetaTrader 5
 
They are diferent things, && is AND operator, ||  is OR operator
 
Alejandro Cuartas:
They are diferent things, && is AND operator, ||  is OR operator
Thank you very much. 
 
Marco vd Heijden:

https://www.mql5.com/en/docs/basis/operations/rules

&&

Logical AND operation

From left to right

||

Logical OR operation

From left to right

Thanks. 

I will study it.