The sample code in your question is clearly trying to count the number of occurrences of each character: if it already has a count for a given character, get returns it (so it's just incremented by one), else get returns 0 (so the incrementing correctly gives 1 …

Feb 28, 2020 · I want to get the version of Node.js on the command line. I'm expecting to run a command like: node -version but that doesn't work. Does anybody know what the command line would be? (i.e. not the ...

Aug 13, 2010 · Finally, an important consideration when using GET for AJAX requests is that some browsers - IE in particular - will cache the results of a GET request. So if you, for example, poll using the same GET request you will always get back the same results, even if the data you are querying is being updated server-side.

Sep 26, 2010 · Non-data descriptors, instance and class methods, get their implicit first arguments (usually named self and cls, respectively) from their non-data descriptor method, __get__ - and this is how static methods know not to have an implicit first argument.

Mar 11, 2015 · I tried searching for a command that could list all the file in a directory as well as subfolders using a command prompt command. I have read the help for "dir" command but coudn't find what I was

Dec 14, 2011 · Curl offers a series of different http method calls that are prefixed with a X, but also offers the same methods without. I've tried both and I can't seem to figure out the difference. Can someone

Apr 29, 2015 · I need to find the product GUID for an installed MSI file in order to perform maintenance such as patching, uninstall (how-to uninstall) and also for auditing purposes.

The default output of Get-NetTCPConnection does not include Process ID for some reason and it is a bit confusing. However, you could always get it by formatting the output. The property you are looking for is OwningProcess. If you want to find out the ID of the process that is listening on port 443, run this command:

Apr 11, 2013 · 169 How do I get the row count of a Pandas DataFrame? This table summarises the different situations in which you'd want to count something in a DataFrame (or Series, for completeness), along with the recommended method (s). Footnotes DataFrame.count returns counts for each column as a Series since the non-null count varies by column.

Jun 14, 2018 · The following works best, in my opinion: Get-Item Env:PATH It's shorter and, therefore, a little easier to remember than Get-ChildItem (There's no hierarchy with environment variables). The command is symmetrical to one of the ways being used for setting environment variables with Powershell. (EX: Set-Item -Path env:SomeVariable -Value "Some Value") If you …