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How to remove files from git staging area?
I made changes to some of my files in my local repo, and then I did git add -A which I think added too many files to the staging area. How can I delete all the files from the staging area?
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
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You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields:
SELECT tt.*
FROM topten tt
INNER JOIN
(SELECT home, MAX(datetime) AS MaxDateTime
FROM topten
GROUP BY home) groupedtt
ON tt.home = groupe...
How to get ASCII value of string in C#
...s—including throwing an exception—are available in the Encoding class. And, of course, other character encodings—especially UTF-8—are available, too; One should question whether it is ASCII that is actually wanted.
– Tom Blodget
Jan 11 '19 at 17:53
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How do I fix a NoSuchMethodError?
...ng a NoSuchMethodError error when running my Java program. What's wrong and how do I fix it?
28 Answers
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How to create an alias for a command in Vim?
Vim is my preferred text editor when I program, and thus I always run into a particularly annoying issue.
7 Answers
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Fastest way to implode an associative array with keys
...function. So, if it's not for a URL, is this really faster than array_walk and what if you don't want it encoded?
– e-motiv
Jan 31 '14 at 23:12
10
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Should I use s and s inside my s?
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the nav element and the list provide different semantical information:
The nav element communicates that we're dealing with a major navigation block
The list communicates that the links inside this navigation block form a list of items
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Extract a substring according to a pattern
...we create a data frame with two columns, one for the part before the colon and one for after, and then extract the latter.
library(dplyr)
library(tidyr)
library(purrr)
DF <- data.frame(string)
DF %>%
separate(string, into = c("pre", "post")) %>%
pull("post")
## [1] "E001" "E002" "E00...
How to delete a character from a string using Python
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Given that the questioner is brand new to python, it might be worth noting that while in version 2.X python the "/" operator returns an integer (truncated towards zero), in version 3.X python you should use "//" instead. Also, the line from __future__ impo...
How to get the browser viewport dimensions?
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Cross-browser @media (width) and @media (height) values
const vw = Math.max(document.documentElement.clientWidth || 0, window.innerWidth || 0)
const vh = Math.max(document.documentElement.clientHeight || 0, window.innerHeight || 0)
window.innerWidth a...