len 
Returns the length of any type of data. If the argument value is null or undefined, 0 is returned.
Parameters
| Name | Type | Required | Default |
|---|---|---|---|
data | any | ● | – |
Returns
boolean
Examples
javascript
len('12345'); // Returns 5
len([1, 2, 3]); // Returns 3dart
len('12345'); // Returns 5
len([1, 2, 3]); // Returns 3python
len('12345') # Returns 5
len([1, 2, 3]) # Returns 3