Answer:
Simply put: A callback is a function that is to be executed after another function has finished executing — hence the name 'call back'. ... Functions that do this are called higher-order functions. Any function that is passed as an argument is called a callback function.
Explanation:
Answer:
CASE
Explanation:
Case Structure is a mechanism that allows different executions when there are several distinct possible values for a single variable, and each value requires a different subsequent action depending on the value of the label.
Case structure is also a conditional control structure that appears in most modern programming languages and allows a selection to be made between several sets of program statements.