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Filter rows which contain a certain string
... @MySchizoBuddy: If the column name contains white space, you can select the variable using backticks. Modifying the example above: mtcars$`my type` <- rownames(mtcars) and then mtcars %>% filter(grepl('Toyota|Mazda', `my type`))
– alex23lemm
Ju...
Conceptually, how does replay work in a game?
...ame visual result. If you need randomness, create a set of random numbers, select a seed value when the game is played, and save that seed value in the replay.
In general having randomness in a game is a bad idea. Even for things like multiplayer, you can't have half your players able to see aroun...
How can I unit test Arduino code?
...tiplex four 7 segment displays, one port driving the segments and a second selecting the display. The display code interfaces with the displays via SetSegmentData(char) and SetDisplay(char). I can mock these in my C++ test rig and check that I get the data I expect. For the target I use #define so t...
How to profile a bash shell script slow startup?
...e set -x later and set +x earlier (or bracket several sections of interest selectively).
Although it's not as fine-grained as GNU date's nanoseconds, Bash 5 includes a variable which gives the time in microseconds. Using it saves you from spawning an external executable for every line and works on ...
Create a Date with a set timezone without using a string representation
...urs to find out that the reason was a wrong month.
– Select0r
Feb 28 '12 at 14:17
4
This answer i...
Finding a branch point with Git?
...ed from master):
or here (as viewed from topic):
in both cases, I've selected the commit that is B in my graph. Once you click on it, its full SHA is presented in a text input field just below the graph.
2. visually, but from the terminal:
git log --graph --oneline --all
(Edit/side-note:...
What's the best way to get the last element of an array without deleting it?
...as mainly produced with a lot of stubbornness and patience but the general selection and multi-line edit functions of Sublime text editor helped. regenerating it took almost a day, so if I need to do it again I will probably write something that converts the output of all 210 docker executions to a ...
Can I get a list of files marked --assume-unchanged?
...
PowerShell solution, using Select-String \ sls
git ls-files -v | sls -pattern ^h -casesensitive
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How to use knockout.js with ASP.NET MVC ViewModels?
...ded with KO, they have a dblClick event binded that when fired, remove the selected item from the current list and add it to the other list, when you post to the Controller, the content of each list is sent as JSON data and re-attached to the server model
Nuggets:
Newtonsoft
jQuery
knockoutjs
Knock...
Dependency Inject (DI) “friendly” library
...or facility points this service provider locator to Windsor, making it the selected service provider.
Bottom line: there is no perfect solution. As with any design decision, this issue demands a balance between flexibility, maintainability and convenience.
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