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func main()
t := {"one"=1, "two"=2}
assert t == {"one"=1, "two"=2}
assert t["one"] == 1
assert t["two"] == 2
assert t["???"] == none
assert t["one"]! == 1
assert t["???"] or -1 == -1
t_str := ""
for k,v in t
t_str ++= "($k=$v)"
assert t_str == "(one=1)(two=2)"
assert t.length == 2
assert t.fallback == none
assert t.keys == ["one", "two"]
assert t.values == [1, 2]
t2 := {"three"=3; fallback=t}
assert t2 == {"three"=3; fallback={"one"=1, "two"=2}}
assert t2["one"] == 1
assert t2["three"] == 3
assert t2["???"] == none
assert t2.length == 1
assert t2.fallback == {"one"=1, "two"=2}
t2_str := ""
for k,v in t2
t2_str ++= "($k=$v)"
assert t2_str == "(three=3)"
assert {i=10*i for i in 5} == {1=10, 2=20, 3=30, 4=40, 5=50}
assert {i=10*i for i in 5 if i mod 2 != 0} == {1=10, 3=30, 5=50}
assert {x=10*x for x in y if x > 1 for y in [3, 4, 5] if y < 5} == {2=20, 3=30, 4=40}
>> t3 := @{1=10, 2=20, 3=30}
>> t3.remove(3)
assert t3[] == {1=10, 2=20}
do
>> plain := {1=10, 2=20, 3=30}
assert plain[2]! == 20
assert plain[2]! == 20
assert plain[456] or -999 == -999
assert plain.has(2) == yes
assert plain.has(456) == no
>> fallback := {4=40; fallback=plain}
assert fallback.has(1) == yes
assert fallback[1] or -999 == 10
do
>> t4 := &{"one"= 1}
>> t4["one"] = 999
>> t4["two"] = 222
assert t4[] == {"one"=999, "two"=222}
do
assert {1=1, 2=2} == {2=2, 1=1}
assert {1=1, 2=2} != {1=1, 2=999}
assert ({1=1, 2=2} <> {2=2, 1=1}) == Int32(0)
ints : [{Int=Int}] = [{}, {0=0}, {99=99}, {1=1, 2=2, 3=3}, {1=1, 99=99, 3=3}, {1=1, 2=-99, 3=3}, {1=1, 99=-99, 3=4}]
assert ints.sorted() == [{}, {0=0}, {1=1, 2=-99, 3=3}, {1=1, 2=2, 3=3}, {1=1, 99=99, 3=3}, {1=1, 99=-99, 3=4}, {99=99}]
do
# Default values:
counter := &{"x"=10; default=0}
assert counter["x"] == 10
assert counter["y"] == 0
assert counter.has("x") == yes
assert counter.has("y") == no
>> counter["y"] += 1
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