ICSE Class 10 Computer Applications | 4. Functions by Pavan | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge
4. Functions

Functions are essential building blocks in programming that encapsulate code to perform specific tasks, promoting modularity and reusability. Various types of functions include library and user-defined functions, each serving different purposes. The knowledge of function parameters, overloading, and their types enhances a programmer's ability to write clear and efficient code.

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Sections

  • 4

    Functions

    Functions are essential programming constructs that perform specific tasks, enhance code modularity, and allow for reuse.

    Learning Practice

  • 4.1

    What Is A Function?

    A function is a code block that performs specific tasks, promotes code reuse, and enhances modular programming.

    Learning Practice

  • 4.2

    Types Of Functions

    This section introduces the different types of functions in programming, focusing on library functions and user-defined functions.

    Learning Practice

  • 4.2.1

    Library Functions

    Library functions are predefined functions in programming languages that enhance code efficiency and are essential for performing common operations with minimal coding effort.

    Learning Practice

  • 4.2.2

    User-Defined Functions

    User-defined functions are custom blocks of code created by programmers to perform specific tasks, enhancing modularity and reusability.

    Learning Practice

  • 4.3

    Advantages Of Using Functions

    Using functions in programming enhances modularity, reusability, code clarity, and simplifies debugging.

    Learning Practice

  • 4.4

    Function Definition Syntax

    This section introduces the syntax for defining functions in programming, including the return type, function name, parameter list, and function body.

    Learning Practice

  • 4.5

    Function Calling

    Function calling is the process of executing a function using its name along with the required arguments.

    Learning Practice

  • 4.6

    Actual And Formal Parameters

    This section distinguishes between formal parameters defined in a function declaration and actual parameters passed during function calls.

    Learning

  • 4.7

    Pure And Impure Functions

    This section distinguishes between pure and impure functions, highlighting their differences in terms of side effects and reliance on external states.

    Learning Practice

  • 4.8

    Function Overloading

    Function overloading allows multiple functions to share the same name but differ in parameter types or counts.

    Learning Practice

References

co4.pdf

Class Notes

Memorization

What we have learnt

  • A function is a block of co...
  • Functions enhance modularit...
  • There are different types o...

Final Test

Revision Tests