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Linux - Install redis-cli only
...sr/local/bin/
With Docker I normally use https://registry.hub.docker.com/_/redis/. If I need to add redis-cli to an image I use the following snippet.
RUN cd /tmp &&\
curl http://download.redis.io/redis-stable.tar.gz | tar xz &&\
make -C redis-stable &&\
cp red...
List of Rails Model Types
...
You can use the following basic field types in model scaffolding, all are supported in ActiveRecord supported databases without any extra gem (MySQL, PostgreSQL, SQLite):
:binary
:boolean
:date
:datetime
:decimal
:float
:integer
:primary_key
:string
:text
:time
:timestamp
In the scaffol...
How to find a min/max with Ruby
...ray#max, which are way faster than Enumerable's methods because they skip calling #each.
@nicholasklick mentions another option, Enumerable#minmax, but this time returning an array of [min, max].
[4, 5, 7, 10].minmax
=> [4, 10]
...
How to jQuery clone() and change id?
...D "klon4")
var $klon = $div.clone().prop('id', 'klon'+num );
// Finally insert $klon wherever you want
$div.after( $klon.text('klon'+num) );
});
<script src="https://code.jquery.com/jquery-3.1.0.js"></script>
<button id="cloneDiv">CLICK TO CLONE</button>
...
Why does find -exec mv {} ./target/ + not work?
...thing.
find -exec command {} \;
For each result, command {} is executed. All occurences of {} are replaced by the filename. ; is prefixed with a slash to prevent the shell from interpreting it.
find -exec command {} +
Each result is appended to command and executed afterwards. Taking the command...
How can I remove a substring from a given String?
...ng replace(String text, String searchString, String replacement) Replaces all occurrences of a String within another
String.
static String replace(String text, String searchString, String replacement, int max) Replaces a String with another String inside a
larger String, for the first max va...
How to convert a string with comma-delimited items to a list in Python?
...xplained in any way in the answer text. While the question itself is not really clear, it should be made clear in the answer that the two solutions aren't equivalent alternatives, but differing interpretations of the question.
– Matteo Italia
Oct 12 '17 at 6:23...
How to move columns in a MySQL table?
...erform on a large table? Is it just changing some metadata, or does it actually have to reorganize data on the disk?
– Kip
Nov 12 '15 at 16:01
7
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How to pass html string to webview on android
... web view, after parsing I am creating four strings so that I could append all string to one view. I am able to get two views on the web view but not the first two strings.
...
What are copy elision and return value optimization?
... is an optimization implemented by most compilers to prevent extra (potentially expensive) copies in certain situations. It makes returning by value or pass-by-value feasible in practice (restrictions apply).
It's the only form of optimization that elides (ha!) the as-if rule - copy elision can be a...