Scripts for working with variables are listed here.

Append To ArrayThe script appends an item to the array.
Append To MapThe script adds an item to the associative array.
Append To VariableThe script adds text to the value of the specified variable.
Convert JSON To VariableThe script converts a JSON string into an object variable.
ForeachThe command launches nested commands for each element of the object variable.
Set EnvironmentThe script sets the environment variables.
Set VariableThe script assigns the specified value to the variable.
Set VariablesThe script assigns values to several variables.

Online Demo
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