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How to put comment in ea forex?

As a forex trader, you might have heard about expert advisors (EA) which are automated trading systems that can trade on your behalf based on pre-defined rules. These EAs can be customized and modified to suit your trading style and preferences. One important aspect of EA programming is adding comments to the code. In this article, we’ll look at how to put comments in EA forex.

Comments can be described as text that is added to the code, but it is not executed when the code is run. Comments are used to explain the code or to remind yourself of what a particular section of the code does. In EA forex, comments are essential as they help you to understand the code when you revisit it, or when you want to modify it in the future.

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There are two types of comments in MQL4, which is the programming language used to create EAs in the MetaTrader platform. The first type is a single-line comment, which is indicated by two forward slashes (//). Anything written after the double slash is considered a comment and is ignored by the program. For example:

// This is a single-line comment

The second type is a multi-line comment, which is indicated by /* and */. Anything written between these two symbols is considered a comment and is ignored by the program. For example:

/* This is a multi-line comment

It can be used to explain a section of code in more detail

or to disable a block of code temporarily */

To add comments to your EA forex, you need to open the code editor in MetaTrader. To do this, right-click on the EA in the Navigator window and select Modify or double-click on the EA. This will open the MetaEditor window where you can view and edit the code.

Once you have opened the code editor, you can add comments to your code by typing them on a new line after the double slashes or between the /* and */ symbols. For example:

// This is a comment explaining the purpose of the EA

// This section of code calculates the moving average

/* This is a comment explaining the input parameters

The first parameter is the period for the moving average

The second parameter is the type of moving average */

Comments can also be used to disable a section of code temporarily. This is useful when you want to test a new strategy or modify an existing one without changing the original code. To disable a section of code, you can add // at the beginning of each line or /* at the beginning and */ at the end of the section. For example:

// This section of code is disabled temporarily

//if (MarketInfo(Symbol(), MODE_BID) < iMA(Symbol(), PERIOD_CURRENT, 20, 0, MODE_SMA, PRICE_CLOSE))

//{

// OrderSend(Symbol(), OP_BUY, 0.1, Ask, 3, Bid-50*Point, Bid+50*Point, “Buy Order”, 0, 0, Green);

//}

/* This section of code is disabled temporarily

if (MarketInfo(Symbol(), MODE_ASK) > iMA(Symbol(), PERIOD_CURRENT, 20, 0, MODE_SMA, PRICE_CLOSE))

{

OrderSend(Symbol(), OP_SELL, 0.1, Bid, 3, Ask-50*Point, Ask+50*Point, “Sell Order”, 0, 0, Red);

}

*/

In conclusion, adding comments to your EA forex is an essential aspect of programming. Comments help you to understand the code when you revisit it, or when you want to modify it in the future. Comments can also be used to disable a section of code temporarily. By using single-line comments (//) or multi-line comments (/* and */), you can add comments to your code easily.

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