Basics of Functions
The function is a block of statements that runs when it is called. The world of programming cannot exist without functions since they:
- are reusable.
- can test a particular part of your code.
- can be applied to a number of cases if you change the parameters.
Let’s go deep into it. For instance, you have decided to program the cat. It should say "meow!":
cout << "meow!" << endl;
Easy implementation. Repeating output will overload your code. However, what should we do if the cat must say meow twice or 20 times in different periods?
In such a situation, we can use functions. To create a function, you need to specify the keyword void, the name of the function, followed by parentheses ():
void myFunc() {
// code to be executed
}
Let's create the function sound() for the cat, which will print "meow!":
void sound() {
cout << "meow!" << endl;
}
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The function is a block of statements that runs when it is called. The world of programming cannot exist without functions since they:
- are reusable.
- can test a particular part of your code.
- can be applied to a number of cases if you change the parameters.
Let’s go deep into it. For instance, you have decided to program the cat. It should say "meow!":
cout << "meow!" << endl;
Easy implementation. Repeating output will overload your code. However, what should we do if the cat must say meow twice or 20 times in different periods?
In such a situation, we can use functions. To create a function, you need to specify the keyword void, the name of the function, followed by parentheses ():
void myFunc() {
// code to be executed
}
Let's create the function sound() for the cat, which will print "meow!":
void sound() {
cout << "meow!" << endl;
}
Tak for dine kommentarer!
