index based 1
str = "AB"
str[1] # 'A' char not string
str[end] # 'B'
#=
block comments
println(1);
=#
use other unicode chars like alpha, beta for variable names
string(1) # "1" <> '1' , small string not String
parse(Int64, "1") # 1
string1 concat string 2: string1 * string2
multiline string """
one line
two line """
"interpolation $var"
# data structure
dict = Dict("key" => true, "key2" => "value")
a = 1
i = 0 # iterattor
while i < a
global a = a + i # global
i += 1
end
# Vector: 1D array
arr = [false, 1, "2", 3.14]
typeof(arr) # Vector{Any}
# Matrix: 2D array
# Mutating function with ! vs non mutating function
push!(arr, 1)
el = pop!(arr)
append!(arr, [1,2])
function apply(el)
return el * 2
end
apply.([1,2]) # [2,4]
# multiple dispatch vs overloading
function apply(x)
end
function apply(x::String)
end