Did you find any Hidden Gems in elixir? ’
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Helps to Elixir Beginners
What I found so far are as followed;
Printing the Lists and maps
IO.puts "This is the data #{inspect list}"
IO.puts "This is the data #{inspect map}"
Joining Lists
[1,2,3] ++ [4,5,6]
Updating Map
map = %{name; "blackode", age: "not human" }
updated_map = %{map | name: "john",age: "23"}
#we can update map like above .
hd and tl defs
hd [1,2,3] #output as 1
tl [1,2,3] #output as [2,3]
String Concatenation
"Hello" <> "Blackode" <> "!" #output as HelloBlackode!
Default Values
map = %{name: "john"}
map #output as %{name: "john"}
map[:age] #outputs as :nil
map[:age] || 23 #output as 23
map #output as %{name: "john"}
List Comprehensions
for x<- [1,2,3], do: {x,x+1} #output as [{1, 2}, {2, 3}, {3, 4}]
# we can also do pattern Matching here
for {x,y} <- [{1,2},{3,4}], do: x+y #output as [3,7]
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