ruidy/functional-programming-jargon
1
0
Fork 0
mirror of https://github.com/rjNemo/functional-programming-jargon synced 2026-06-06 02:26:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed inline code formatting in Closure Section

Browse source
This commit is contained in:
Mitch Keenan 2017-11-07 11:36:32 -04:00 committed by Jethro Larson
parent ab81235e89
commit f6f0511100
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
readme.md
View file

@ -156,9 +156,9 @@ const addTo = x => y => x + y
var addToFive = addTo(5)
addToFive(3) // returns 8
```
The function ```addTo()``` returns a function(internally called ```add()```), lets store it in a variable called ```addToFive``` with a curried call having parameter 5.
The function `addTo()` returns a function(internally called `add()`), lets store it in a variable called `addToFive` with a curried call having parameter 5.
Ideally, when the function ```addTo``` finishes execution, its scope, with local variables add, x, y should not be accessible. But, it returns 8 on calling ```addToFive()```. This means that the state of the function ```addTo``` is saved even after the block of code has finished executing, otherwise there is no way of knowing that ```addTo``` was called as ```addTo(5)``` and the value of x was set to 5.
Ideally, when the function `addTo` finishes execution, its scope, with local variables add, x, y should not be accessible. But, it returns 8 on calling `addToFive()`. This means that the state of the function `addTo` is saved even after the block of code has finished executing, otherwise there is no way of knowing that `addTo` was called as `addTo(5)` and the value of x was set to 5.
Lexical scoping is the reason why it is able to find the values of x and add - the private variables of the parent which has finished executing. This value is called a Closure.