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How to efficiently concatenate strings in go
...Fprint(buffer,"]",r.size,")\n")
return buffer.String()
}
This took 0.81 seconds, whereas the following code:
func (r *record) String() string {
s := "(\"" + r.name + "\" ["
for i := 0; i < len(r.subs); i++ {
s += r.subs[i].String()
}
s += "] " + strconv.FormatInt(r....
How to restart a rails server on Heroku?
...
Michael DurrantMichael Durrant
81.1k7676 gold badges278278 silver badges402402 bronze badges
...
Git interactive rebase no commits to pick
...
Michael Durrant
81.2k7676 gold badges278278 silver badges402402 bronze badges
answered Jun 26 '11 at 17:40
CB BaileyC...
Change Circle color of radio button
...[]{
Color.DKGRAY
, Color.rgb (242,81,112),
}
);
rb.setSupportButtonTintList(colorStateList);
Tested result at API 19:
See the android reference link for more detail.
...
Does Python's time.time() return the local or UTC timestamp?
...import time
>>> ts = time.time()
>>> print ts
1355563265.81
>>> import datetime
>>> st = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
>>> print st
2012-12-15 01:21:05
>>>
The ts variable is the time returned in seconds. I ...
Run a callback only if an attribute has changed in Rails
...ttps://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae6c96faac5b4a3c81
Here is a blog post on these changes: https://www.ombulabs.com/blog/rails/upgrades/active-record-5-1-api-changes.html
Here is the summary I made for myself on the changes to ActiveRecord::Dirty in Rails 5.1+:
ActiveReco...
How to check whether an array is empty using PHP?
...
81
Some decent answers, but just thought I'd expand a bit to explain more clearly when PHP determi...
Check if value already exists within list of dictionaries?
... Mark ByersMark Byers
683k155155 gold badges14681468 silver badges13881388 bronze badges
...
How do I use prepared statements in SQlite in Android?
...
81
I don't know how this answer can have so many votes. SQLIteStatement#execute shouldn't be used for Sql queries, only statements. Please che...
Print a string as hex bytes?
...72||o:6f||ß:c39f||r:72||ä:c3a4||s:73||c:63||h:68||e:65||n:6e||,:2c||Ł:c581||ó:c3b3||d:64||ź:c5ba||,:2c||А:d090||ш:d188||а:d0b0||,:2c||广:e5b9bf||东:e4b89c||省:e79c81||,:2c||L:4c||A:41||
– bballdave025
Dec 26 '19 at 21:52
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