Computer Science for IGCSE & O level - Algorithm Design And Problem Solving (Section 2 - No. 47)
What does a 'presence check' primarily aim to validate?
That the input is within a specific range.
That an input field has a value.
That the input is of the correct data type.
That the input has a valid format.
Giải thích
A presence check is to check if the data has been input