大约有 500 项符合查询结果（耗时：0.0186秒） [XML]
How do I clone a subdirectory only of a Git repository?
...86eeec00f9c1
fc5e97944480982cfc180a6d6634699921ee63ec
7251a83be9a03161acde7b71a8fda9be19f47128
62d67bce3c672fe2b9065f372726a11e57bade7e
b64bf435a3e54c5208a1b70b7bcb0fc627463a75 d1
308150e8fddde043f3dbbb8573abb6af1df96e63 d1/a
f70a17f51b7b30fec48a32e4f19ac15e261fd1a4 d1/b
84de03c312dc741d0f2a66df7b2f...
Convert a timedelta to days, hours and minutes
...t to take into account fractions of a second
seconds += td.microseconds / 1e6
share
|
improve this answer
|
follow
|
...
How can I specify the base for Math.log() in JavaScript?
...ion with selective rounding: (Math.round(Math.log(1000) / Math.LN10 * 1e6) / 1e6)
– Shane Daniel
Nov 21 '13 at 5:01
...
What is the difference between RegExp’s exec() function and String’s match() function?
...h() using the g flag:
var str = "qqqABApppabacccaba";
var e1, e2, e3, e4, e5;
e1 = str.match(/nop/g); //null
e2 = str.match(/no(p)/g); //null
e3 = str.match(/aba/g); //["aba", "aba"]
e4 = str.match(/aba/gi); //["ABA", "aba", "aba"]
e5 = str.match(/(ab)a/g); //["aba", "aba"] ignoring capture groups ...
In Java, what is the best way to determine the size of an object?
... PATH VALUE
d5e5f290 16 java.util.regex.Pattern$Node .root.next.atom.next (object)
d5e5f2a0 120 (something else) (somewhere else) (something else)
d5e5f318 ...
Programmer Puzzle: Encoding a chess board state throughout a game
...y specifies the minimal information necessary. Consider this opening:
e4 e5
Nf3 Nc6
…
which translates to:
White moves king’s pawn from e2 to e4 (it is the only piece that can get to e4 hence “e4”);
Black moves the king’s pawn from e7 to e5;
White moves the knight (N) to f3;
Black mo...
Add days to JavaScript Date
...fied: Date.prototype.addDays=function(d){return new Date(this.valueOf()+864E5*d);};
– Duncan
Oct 15 '14 at 17:51
30
...
How do I get Windows to go as fast as Linux for compiling C++?
...ow a try and and post your timing if you disagree.
– b7kich
Dec 30 '11 at 20:54
6
We need a bette...
Set transparent background of an imageview on Android
...ctor.
Some opacity code:
Hex Opacity Values
100% — FF
95% — F2
90% — E6
85% — D9
80% — CC
75% — BF
70% — B3
65% — A6
60% — 99
55% — 8C
50% — 80
45% — 73
40% — 66
35% — 59
30% — 4D
25% — 40
20% — 33
15% — 26
10% — 1A
5% — 0D
0% — 00
You can also set opacit...
Remove columns from dataframe where ALL values are NA
...tion(x)!all(is.na(x))))),with=F]
examples using large data (30 columns, 1e6 rows)
big_data <- replicate(10, data.frame(rep(NA, 1e6), sample(c(1:8,NA),1e6,T), sample(250,1e6,T)),simplify=F)
bd <- do.call(data.frame,big_data)
names(bd) <- paste0('X',seq_len(30))
DT <- as.data.table(bd)
...