Mastering Windows PowerShell Scripting - Third Edition

Multiply and assign, divide and assign, and modulus and assign

Numeric assignments using the multiply and assign operator may be performed using *=. The value held by the variable i will be 4:

$i = 2 $i *= 2 

The multiply and assign operator may be used to duplicate a string held in a variable:

$string = 'one' 
$string *= 2 

The value on the right-hand side of the *= operator must be numeric or must be able to convert to a number. For example, a string containing the number 2 is acceptable:

$string = 'one' 
$string *= '2' 

Using a string that is unable to convert to a number results in an error, as follows:

PS> $variable = 'one'PS> $variable *= 'one'Cannot convert value "one" to type "System.Int32". Error: "Input string was not in a correct ...