Hash table in PowerShell

hashtable is easy to create, access and manipulate.

we simply use

$hashTable = @{}

to create an empty hash table.

and use

$hashTable.color = "Blue"

to set the key and value pair.

refer to http://ss64.com/ps/syntax-hash-tables.html, it is very flexible to use hash table.

one thing I want to point out is that whenver we want to traverse the hashtable, what can we do ?

just like an Array in PowerShell, using ForEach can do it.

For hashtable, we can use like:

foreach ($dog in $dogs.GetEnumerator())
{
# do what you like
}

　　or

$hashtable.GetEnumerator() | ForEach-Object { … }