Can We Use a Function as a Parameter of Another Function?

Alexander Ross
Alexander Ross
• • 7 min read

You Cannot Pass Function to Another Function as Parameter. But, You Can Pass Function Reference to Another Function Using Function Pointers. Using Function...

Can We Use a Function as a Parameter of Another Function?
You cannot pass function to another function as parameter. But, you can pass function reference to another function using function pointers. Using function pointer you can store reference of a function and can pass it to another function as normal pointer variable.

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In this way, are function that is passed to another function and takes this other function as a parameter?

A callback function, also known as a higher-order function, is a function that is passed to another function (let's call this other function “otherFunction”) as a parameter, and the callback function is called (or executed) inside the otherFunction.

Similarly, what are different ways to pass parameter to function? There are two ways to pass parameters in C: Pass by Value, Pass by Reference.

  • Pass by Value. Pass by Value, means that a copy of the data is made and stored by way of the name of the parameter.
  • Pass by Reference. A reference parameter "refers" to the original data in the calling function.

Correspondingly, can a function be a parameter?

A function can take parameters which are just values you supply to the function so that the function can do something utilising those values. These parameters are just like variables except that the values of these variables are defined when we call the function and are not assigned values within the function itself.

What is callback function example?

A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action. A good example is the callback functions executed inside a . then() block chained onto the end of a promise after that promise fulfills or rejects.

Related Question Answers

How do you create a callback function?

A custom callback function can be created by using the callback keyword as the last parameter. It can then be invoked by calling the callback() function at the end of the function. The typeof operator is optionally used to check if the argument passed is actually a function.

Must Read

How do callbacks work?

A callback function is a function that is passed as an argument to another function, to be “called back” at a later time. A function that accepts other functions as arguments is called a higher-order function, which contains the logic for when the callback function gets executed.
Alexander Ross

Alexander Ross

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Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.