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Let’s Understand the Basics of Closure Property
Closure is a property of functions in JavaScript. It is a way of keeping a function alive even after the variable that refers to it goes out of scope.
When a function is created, it is given a reference to the environment in which it was created. This environment includes all the local variables and parameters that were in scope when the function was created.
The closure property means that the function can access these variables even after the environment has gone out of scope. This is useful for creating functions that can be used as part of a larger application.
Closure Property Definition (Maths)
Closure is a property of certain operations in mathematics, which states that the result of the operation is always included in the set of inputs. The closure property is also known as the identity property or the self-existence property.
Examples of Closure Property
Closure Property states that a function is a member of the set of all functions that can be defined on a given set of arguments. In simpler words, closure property states that a function is a subset of all functions that can be defined on the same set of arguments.
Closure Property is also known as Function Composition Property.
Closure for Different Functions
#1. For a function that takes a single input, the closing parenthesis goes after the input.
#2. For a function that takes two inputs, the closing parenthesis goes after the first input.
#3. For a function that takes three inputs, the closing parenthesis goes after the second input.
#4. For a function that takes four inputs, the closing parenthesis goes after the third input.
#5. For a function that takes five or more inputs, the closing parenthesis goes after the fourth input.
