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How can I reconcile detached HEAD with master/origin?
...git rev-parse refs/heads/master yield 17a02998078923f2d62811326d130de991d1a95a
That commit is the current tip or “head” of the master branch.
git rev-parse HEAD also yields 17a02998078923f2d62811326d130de991d1a95a
This is what it means to be a “symbolic ref”. It points to an object through s...
Summarizing multiple columns with dplyr? [duplicate]
...8 2.98 2.91
#> 2 2 3.03 3.04 2.97 2.87
#> 3 3 2.85 2.95 2.95 3.06
If you want to summarize only certain columns, use summarise_at or summarise_if functions.
Alternatively, the purrrlyr package provides the same functionality:
library(purrrlyr)
df %>% slice_rows("grp") %&g...
Handling colon in element ID with jQuery
...
209
You need to escape the colon using two back-slashes:
$('#test\\:abc')
...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
...7,334,197,581,225,628,107,021,573,849,359,042,679,698,093,131,908,015,712,695,688,944,173,317,630,555,849,768,647,118,986,535,684,992,447,654,339,728,777,985,990,170,679,511,111,819,558,063,246,667,855,023,730,127,805,401,069,042,322,764,200,545,883,378,826,983,730,553,730,138,478,384,327,116,513,14...
How to print like printf in Python3?
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209
In Python2, print was a keyword which introduced a statement:
print "Hi"
In Python3, print ...
Disable a Button
...
209
The boolean value for NO in Swift is false.
button.isEnabled = false
should do it.
Here is...
How do I revert my changes to a git submodule?
...
209
A more fail-safe method than all previous answers:
git submodule deinit -f .
git submodule up...
Split (explode) pandas dataframe string entry to separate rows
...de() method into the API (also see this answer).
– cs95
Jul 20 '19 at 7:23
...
Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...12 (1992.1.15)主要加入对数学协处理器的软件模拟程序。
0.95 (0.13) (1992.3.8) 开始加入虚拟文件系统思想的内核版本。
0.96 (1992.5.12)开始加入网络支持和虚拟文件系统VFS。
0.97 (1992.8.1)
0.98 (1992.9.29)
0.99 (1992.12.13)
1.0 (1994.3.14)
1.20 (19...
How do I concatenate two lists in Python?
...tion for chaining multiple lists (n >> 2).
– cs95
Jun 4 '19 at 14:10
@cs95 slow compared to what?
...