How do I dynamically add elements to arrays in PowerShell?
$testArray = [System.Collections.ArrayList]@() $tempArray = “123”, “321”, “453” foreach($item in $tempArray) { $arrayID = $testArray.Add($item) }
arrays
jq & bash: make JSON array from variable
In jq 1.3 and up you can use the –arg VARIABLE VALUE command-line option: jq -n –arg v “$VAR” ‘{“foo”: $v}’ I.e., –arg sets a variable to the given value so you can then use $varname in your jq program, and now you don’t have to use shell variable interpolation into your jq program. EDIT: … Read more
How to save each line of text file as array through powershell
The Get-Content command returns each line from a text file as a separate string, so will give you an array (so long as you don’t use the -Raw parameter; which causes all lines to be combined to a single string). [string[]]$arrayFromFile = Get-Content -Path ‘C:\USER\Documents\Collections\collection.txt’ In his excellent answer, mklement0 gives a lot more detail … Read more
What is the difference between removeLast() and popLast() methods of Array in Swift?
Those two methods are from AnyRandomAccessCollection which Array conforms to. popLast returns nil if the collection is empty. removeLast crashes if the collection is empty. It also has a discardable result.
How to get all 24 rotations of a 3-dimensional array?
A die (half a pair of dice) is handy for observing the 24 different orientations, and can suggest operation sequences to generate them. You will see that any of six faces can be uppermost, and the sides below can be rotated into four different cardinal directions. Let us denote two operations: “turn” and “roll”, where … Read more
In Ruby how do I find the index of one of an array of elements?
You can use find_index and pass the needed value from the array: a = [“a”, “b”, “c”] p a.find_index(‘a’) p a.find_index(‘b’) p a.find_index(‘c’) # => 0 # => 1 # => 2 You can use map to get every element inside your a array and then to get the index corresponding to each element: p … Read more
React Testing Library – using ‘await wait()’ after fireEvent
5 months later I’m coming back to answer my question (I’ve learned a lot since posting this question lol)…. First of all, since it is 5 months later I want to underscore that it is better to use the userEvent library instead of fireEvent if possible. I also would be remiss to not call out … Read more
Convert bytearray to bytes-like object
As Coldspeed put it in the comments, just pass a bytearray to a bytes call: bytes(my_ba)
PostgreSQL PL/pgSQL random value from array of values
Try this one: select (array[‘Yes’, ‘No’, ‘Maybe’])[floor(random() * 3 + 1)];