大约有 13,700 项符合查询结果（耗时：0.0302秒） [XML]
How do I sort an array of hashes by a value in the hash?
...by has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value"] }
puts sorted
As of Ruby 1.9+, .sort_by! is available for in-place sorting:
sort_me.sort_by! { |k| k["value"]}
...
How to properly seed random number generator
... a set of distinct and deterministic random sequences).
import (
crypto_rand "crypto/rand"
"encoding/binary"
math_rand "math/rand"
)
func init() {
var b [8]byte
_, err := crypto_rand.Read(b[:])
if err != nil {
panic("cannot seed math/rand package with cryptographical...
Difference between this and self in self-type annotations?
...
btw you can also do _: B => for the non-alias case for simplicity
– Creos
Jun 19 '19 at 17:29
add a comment
...
Differences between utf8 and latin1
...orted, the remnant not. For all characters, see en.wikipedia.org/wiki/Plane_(Unicode)
– BalusC
Jun 12 '12 at 11:01
2
...
What's the state of the art in email validation for Rails?
...ou are interested, please write me on the github project : hallelujah/valid_email
– Hallelujah
May 19 '14 at 9:01
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how to make svn diff show only non-whitespace line changes between two revisions
...ow if is new for 1.6, but entry number 8 at akatombo.com/en/comments/ignore_whitespace_in_a_subversion_diff suggest that it is available since 1.4
– jrbjazz
Nov 16 '09 at 12:06
1
...
How do I return rows with a specific value first?
... solution than the accepted answer in my opinion)
– a_horse_with_no_name
Sep 24 '13 at 20:49
2
Wo...
SVN encrypted password store
... provide for hashed pw like htpasswd or similar.
– d-_-b
Sep 21 '11 at 6:41
17
@sims Hashing is g...
Excluding directories in os.walk
...ld a comprehension only for its side effects...
– 301_Moved_Permanently
Nov 5 '16 at 9:33
3
This ...
Intent - if activity is running, bring it to front, else start a new one (from notification)
...nt = new Intent(context, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
return PendingIntent.getActivity(context, NON_ZERO_REQUEST_CODE, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
Here FLAG_ACTIVITY_SINGLE_TOP opens existin...