Today I have been learning about arrow functions. I've got to say that at first it's hard to wrap my head around the idea that a function can take ...
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.some
and.every
are amazing too, also.reduce
. All the functors rock. AlsoArray.from
This is a nifty trick too, pass a
Boolean
construtor to clean an array of all falsely or holes, return only truthy values.Lastly
.find
is just like filter but returns one value rather than an array.Ps.
I think all the functors are based on
reduce
.PSS.
This is functional programming where this expression is preferred over statements like
if
andfor
. You will be surprised how much you can get away with.Ooh! New toys! I'll have to check them and see what they do.
Incredible how there's still things to learn. I will definitely start looking at ways to through in this nifty trick, and that
.find
too! Thanks!Looks like I should do a post on JavaScript arrays
They're amazing. Not a day goes by without me writing one of these! I love how easy they are to write and how understandable they are to read afterwards to know what a piece of code does.
I was about to say that, if you like map and filter, you'll love reduce, but it's been said...
I've looked at it a bit, but I think it'll be tomorrow's trouble, hehe
It'll be there when you get to it.
In my language of choice, Perl,
map
exists,filter
isgrep
, andreduce
comes from a non-standard library. It still fills me with joy.The explanation was neat!
Good explanation and examples! 😊
Groovy well that's straightend out. 😅
These are my enemies from today onwards.. haha