Writing Expressions

Writing expressions in Talos is straightforward. There are a few simple rules for using variables, numbers, text, and operators.

Variables

Variables are pieces of information stored in your workflow. To use a variable in an expression, wrap its name in ${ }.

• To use a variable: ${VariableName}
• Example: ${Price} * 1.2
• Example: ${UserRole} == "Admin"

Fixed Values (Literals)

You can use fixed values directly in your expressions.

Value Type	How to Write it	Example
Numbers	Write them normally	10, 3.14
Text	Wrap in double quotes	"Hello", "My Report"
True / False	Use true or false	true
Lists	Use square brackets	[1, 2, 3]
Coordinates	Use parentheses	(100, 250)

Using Operators

Operators are symbols used to calculate or compare values.

Calculating

• + : Add numbers or combine text ("A" + "B" → "AB")
• - : Subtract numbers
• * : Multiply numbers
• / : Divide numbers
• % : Get the remainder of a division

Comparing

• == : Check if two values are equal
• != : Check if two values are not equal
• < / > : Check if one value is less than or greater than another
• <= / >= : Check if one value is less than/greater than or equal to another

Combining

• && : Used when both conditions must be true
• || : Used when at least one condition must be true
• ! : Used to reverse a true/false value

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Properties and Functions

Every value in Talos has built-in Properties (information you can read) and Functions (actions you can perform). You access these using a dot (.).

• Properties (Read Information):
  • ${MyString}.Length() (Gets the number of characters)
  • ${MyList}.Empty() (Checks if the list is empty)
• Functions (Perform Actions):
  • ${MyString}.ToUpperCase() (Converts to uppercase)
  • ${MyList}.Append("New Item") (Adds an item to the list)