What is the difference between functions and actions in
QTP?
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Answer Posted / deven
♦It returns single value.
♦ we can call functions within actions but we can't call
actions within functions
♦ Generally functions are saved with ".vbs" extension
whereas actions will save with ".mts".
♦ Every Action will have its own Datatable whereas function
does not.
♦ Action can have a object repository associated with it
while a function can't. A function is just lines of code
with
some/none parameters and a single return value while an
action can have more than one output parameters.
♦ Action can contain Object Repository, Data table, Active
screen etc. whereas function do not have these features.
♦ Action is internal to QTP whereas Function is just lines
of code with some/none parameters and a single return value.
♦ Action can/cannot be resuable whereas functions are
always reusable.
♦ Action Parameter have default values whereas VB script
functions do not have any default values.
♦ Action parameter type are byvalue only where vbscript
functions can be passed byref.
♦ Action can have multiple output(returning) values whereas
function can return only single value.
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