isProgramKey
isProgramKey(
str): str is `ag5zfmtoYW4tYWNhZGVteXI${string}CxIKU2NyYXRjaHBhZB${string}${string}`
Checks if a string is a valid program key
Parameters
• str: string
Returns
str is `ag5zfmtoYW4tYWNhZGVteXI${string}CxIKU2NyYXRjaHBhZB${string}${string}`
Remarks
This function will only check the format of the string and not the existence of the program on Khan Academy.
Program keys are not the same format as lesson keys or other keys that may look similar at first glance.
This function has been tested against more than 1,000,000 program keys but it is possible that in the future, new program key formats will be introduced.