Script

Code fails - whether because of reasons out of our control, or because we didn’t consider the situation it might fail. Expired credentials, timeout connections, lack of permissions go genuine software bug - each of these are potential problem which might fall our code over. And if we don’t handle the error, our script will simply throw and terminate. It’s certainly not desired state. In this video I’ll show you different ways PowerShell can error, how to debug such errors and how to handle them - so that we are in control....

For loop - do you actually need it, since there’s foreach loop? Turns out, yes - there are situations where for loop comes very handy. In this video I’ll show you the basic syntax of the for loop, going through nested for loops to end up with real case scenario from Azure Application Insights. # Link to the video: https://youtu.be/YQnBVn-9SN0 # Documentation: # https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_for?view=powershell-7.1 # Basic syntax: # for (Initial Value/statement; Condition; Repeat) { Run my code } # Initial value: Set this is up before starting the loop # Condition: For loops ends, when condition evaluates to false; or it keep running as lon as condition is true # Repeat: Do this after every loop for ($MyVariable = 0; $MyVariable -lt 10; $MyVariable = $MyVariable + 1) { '$MyVariable is {0}' -f $MyVariable Start-Sleep -Seconds 2 } for ($MyVariable = 0; $MyVariable -lt 99; $MyVariable++) { '$MyVariable is {0}' -f $MyVariable } # We can also decrease it for ($MyVariable = 10; $MyVariable -gt 5; $MyVariable = $MyVariable - 1) { '$MyVariable is {0}' -f $MyVariable } # or specify variable outside if $outside = 7 for (; $outside -lt 15; $outside++) { '$Outside is {0}' -f $outside } #Looping through array $pets = @("Cat", "Dog", "Fish", "Turtle") $pets....