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Update 2012/12/combinators_1.md #25

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4 changes: 2 additions & 2 deletions 2012/12/combinators_1.md
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Expand Up @@ -147,7 +147,7 @@ A common problem in programming is checking for `null` or `undefined` (hereafter
This recipe concerns pattern that is very common: A function `fn` takes a value as a parameter, and its behaviour by design is to do nothing if the parameter is nothing:

function isSomething (value) {
return value != null
return value !== null
}

function checksForSomething (value) {
Expand Down Expand Up @@ -218,4 +218,4 @@ Recent work:
[Reg Braithwaite](http://braythwayt.com) | [@raganwald](http://twitter.com/raganwald)

[andand]: https://github.com/raganwald/andand
[maybe]: https://en.wikipedia.org/wiki/Monad_(functional_programming)#The_Maybe_monad
[maybe]: https://en.wikipedia.org/wiki/Monad_(functional_programming)#The_Maybe_monad