33 lines
1.2 KiB
Markdown
33 lines
1.2 KiB
Markdown
## 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
|
|
```
|