SortHash.ps1

# In reply to comment https://www.reddit.com/r/PowerShell/comments/47wc3x/ive_been_asked_to_come_up_with_35_questions_to/d0g8bgd


$Hash = @{
    "a" = 5
    "b" = 4
    "c" = 3
    "d" = 2
    "e" = 1
}

$Hash

# Name                           Value
# ----                           -----
# c                              3
# e                              1
# d                              2
# b                              4
# a                              5

"Sort by Name (Key)"
$Hash.GetEnumerator() | Sort-Object Name

# Name                           Value
# ----                           -----
# a                              5
# b                              4
# c                              3
# d                              2
# e                              1

"Sort by Value"
$Hash.GetEnumerator() | Sort-Object Value

# Name                           Value
# ----                           -----
# e                              1
# d                              2
# c                              3
# b                              4
# a                              5

# Other hash notes

"A hash is an object with a bunch of members"

$Hash | Select-Object -First 1

# Name                           Value
# ----                           -----
# c                              3
# e                              1
# d                              2
# b                              4
# a                              5

".GetEnumerator() emits a series of objects in name/value pair"

$Hash.GetEnumerator() | Select-Object -First 1

# Name                           Value
# ----                           -----
# c                              3

# Adding notes on ordered hashes in reply to https://www.reddit.com/r/PowerShell/comments/47wc3x/ive_been_asked_to_come_up_with_35_questions_to/d0ga4p2

"Ordered hashes don't solve a sorting problem in most cases"

$OrderedHash = [ordered]@{
    "a" = 5
    "b" = 4
    "c" = 3
    "d" = 2
    "z" = 0
}

$OrderedHash

# Name                           Value
# a                              5
# b                              4
# c                              3
# d                              2
# z                              0

"Ordered hases keep the order you added the members, not sorted by the names or values"

$OrderedHash["e"] = 1
$OrderedHash

# Name                           Value
# a                              5
# b                              4
# c                              3
# d                              2
# z                              0
# e                              1