## getListLen() The `getListLen()` command calculates the length of a list and stores the result in a target variable. This command is useful for determining the number of elements in a list. ### Parameters * SourceVariable Type: var Description: The variable containing the list whose length you want to calculate. It can be a variable that stores the list or a direct value representing the list. * TargetVariable Type: var Description: The variable where the result of the list length will be stored. This should be a variable that will receive the integer value representing the number of elements in the list. ### Command Flow ### Usage Example Suppose the list in `myList` is `['apple', 'banana', 'cherry']`. ```javascript // Variable definitions myList = ['apple', 'banana', 'cherry'] listLength = 0 // Call the command to calculate the length of the list getListLen(myList, listLength) // Return the list length through addResult addResult(listLength) ``` Since the list `myList` has 3 elements, the `getListLen()` command will calculate that the length is 3. This value will be stored in the `listLength` variable and returned through `addResult(listLength)`, resulting in the following output: ```javascript 3 ```