Pangram checker

You are encouraged to solve this task according to the task description, using any language you may know.
A pangram is a sentence that contains all the letters of the English alphabet at least once.

For example:   The quick brown fox jumps over the lazy dog.



Task

Write a function or method to check a sentence to see if it is a   pangram   (or not)   and show its use.



Related tasks

   determine if a string has all the same characters
   determine if a string has all unique characters


 
function Test-Pangram ( [string]$Text, [string]$Alphabet = 'abcdefghijklmnopqrstuvwxyz' )
    {
    $Text = $Text.ToLower()
    $Alphabet = $Alphabet.ToLower()
 
    $IsPangram = @( $Alphabet.ToCharArray() | Where-Object { $Text.Contains( $_ ) } ).Count -eq $Alphabet.Length
 
    return $IsPangram
    }
 
Test-Pangram 'The quick brown fox jumped over the lazy dog.'
Test-Pangram 'The quick brown fox jumps over the lazy dog.'
Test-Pangram 'Съешь же ещё этих мягких французских булок, да выпей чаю' 'абвгдежзийклмнопрстуфхцчшщъыьэюяё'
 