powershell concat string

Substitution

Because the expanding string can become difficult to read, I often like to use substitution values and the format specifier. To do this, I create a string and parameters for place holders. My separator goes inside the string. Then I use the –f format operator and specify the values for {0} and {1}. This is shown here:

PS C:\> "{0}, {1}" -f $s,$t

This is a string, a really cool string