Very small ea to understand syntax related to deal

 
Just write an ea where u extract latest deal type deal reason and check deal type==sell&& deal reason==deal_reason_sl if condition meets print on screen "check"

The ea will make me understand how to use dealinfo
 
neerajkadel10: Just write an ea where u extract latest deal type deal reason and check deal type==sell&& deal reason==deal_reason_sl if condition meets print on screen "check". The ea will make me understand how to use dealinfo

We are not a coding service here. Please do your own research. There are plenty of Articles on the subject and many examples in the CodeBase.

Here is a starting point ...

Articles

Orders, Positions and Deals in MetaTrader 5

MetaQuotes, 2011.02.01 16:13

Creating a robust trading robot cannot be done without an understanding of the mechanisms of the MetaTrader 5 trading system. The client terminal receives the information about the positions, orders, and deals from the trading server. To handle this data properly using the MQL5, it's necessary to have a good understanding of the interaction between the MQL5-program and the client terminal.

 
neerajkadel10: Just write an ea

No! There are no slaves here.

You have only four choices:

  1. Search for it (CodeBase or Market). Do you expect us to do your research for you?

  2. Beg at:

  3. MT4: Learn to code it.
    MT5: Begin learning to code it.

    If you don't learn MQL4/5, there is no common language for us to communicate. If we tell you what you need, you can't code it. If we give you the code, you don't know how to integrate it into your code.

  4. Or pay (Freelance) someone to code it. Top of every page is the link Freelance.
              Hiring to write script - General - MQL5 programming forum (2019)

We're not going to code it for you (although it could happen if you are lucky or the problem is interesting.) We are willing to help you when you post your attempt (using CODE button) and state the nature of your problem.
          No free help (2017)