tomo/test/arrays.tm
2024-06-18 01:32:44 -04:00

121 lines
1.8 KiB
Tcl

func main():
do:
>> [:Num32]
= [] : [Num32]
do:
>> arr := [10, 20, 30]
= [10, 20, 30]
>> arr[1]
= 10
>> arr[-1]
= 30
>> #arr
= 3
sum := 0
for x in arr:
sum += x
>> sum
= 60
str := ""
for i,x in arr:
str ++= "({i},{x})"
>> str
= "(1,10)(2,20)(3,30)"
do:
>> arr := [10, 20] ++ [30, 40]
= [10, 20, 30, 40]
>> arr ++= [50, 60]
>> arr
= [10, 20, 30, 40, 50, 60]
>> arr ++= 70
>> arr
= [10, 20, 30, 40, 50, 60, 70]
do:
>> arr := [10, 20]
>> copy := arr
>> arr ++= 30
>> arr
= [10, 20, 30]
>> copy
= [10, 20]
do:
>> [10*i for i in 5]
= [10, 20, 30, 40, 50]
>> [i*10 for i in 5]
= [10, 20, 30, 40, 50]
>> [i*10 for i in 5 if i mod 2 != 0]
= [10, 30, 50]
>> [x for x in y if x > 1 for y in [3, 4, 5] if y < 5]
= [2, 3, 2, 3, 4]
do:
>> arr := @[10, 20]
>> copy := arr[]
>> arr:insert(30)
>> arr
= @[10, 20, 30]
>> copy
= [10, 20]
>> arr[1] = 999
>> arr
= @[999, 20, 30]
do:
>> arr := [10, 20, 30]
>> arr:reversed()
= [30, 20, 10]
do:
>> nums := [10, -20, 30]
// Sorted function doesn't mutate original:
>> nums:sorted()
= [-20, 10, 30]
>> nums
= [10, -20, 30]
// Sort function does mutate in place:
>> nums:sort()
>> nums
= [-20, 10, 30]
// Custom sort functions:
>> nums:sort(func(x:&%Int,y:&%Int): x:abs() <> y:abs())
>> nums
= [10, -20, 30]
>> nums:sort(func(x:&%Int,y:&%Int): y[] <> x[])
>> nums
= [30, 10, -20]
>> ["A", "B", "C"]:sample(10, [1.0, 0.5, 0.0])
do:
>> heap := [Int.random(max=50) for _ in 10]
>> heap:heapify()
>> heap
sorted := [:Int]
while #heap > 0:
sorted:insert(heap:heap_pop())
>> sorted == sorted:sorted()
= yes
for _ in 10:
heap:heap_push(Int.random(max=50))
>> heap
sorted = [:Int]
while #heap > 0:
sorted:insert(heap:heap_pop())
>> sorted == sorted:sorted()
= yes