Higher-order functions are special types of functions in JavaScript. They can do two things:
- Take other functions as arguments.
- Return a function as a result.
This makes them very powerful and flexible.
Example:
Let’s say we have a function called greet. It prints a greeting message.
function greet(name) {
return `Hello, ${name}!`;
}
Now, we can create a higher-order function called makeGreeting. It takes a function and a name. It uses the function to create a greeting.
function makeGreeting(greetingFunction, name) {
return greetingFunction(name);
}
We can use makeGreeting like this:
console.log(makeGreeting(greet, "Alice")); // This will print: Hello, Alice
So, makeGreeting is a higher-order function because it takes another function (greet) as an input.
Read Also : What are the key topics you will learn from the JavaScript syllabus?
Answered a month ago
Anonymous
Higher-order functions are special types of functions in JavaScript. They can do two things:
This makes them very powerful and flexible.
Example:
Let’s say we have a function called
greet. It prints a greeting message.Now, we can create a higher-order function called
makeGreeting. It takes a function and a name. It uses the function to create a greeting.function makeGreeting(greetingFunction, name) { return greetingFunction(name); }We can use
makeGreetinglike this:So,
makeGreetingis a higher-order function because it takes another function (greet) as an input.Read Also : What are the key topics you will learn from the JavaScript syllabus?