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Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
21 Answers
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How to merge 2 JSON objects from 2 files using jq?
...s add
{
"a": 0,
"b": "bar",
"c": "baz"
}
This reads all JSON texts from stdin into an array (jq -s does that) then it "reduces" them.
(add is defined as def add: reduce .[] as $x (null; . + $x);, which iterates over the input array's/object's values and adds them. Object addition == merge....
How to make an unaware datetime timezone aware in python
...ng you the returned value. :)
– Karl Knechtel - away from home
Aug 15 '11 at 14:33
5
if the timez...
How can I pass command-line arguments to a Perl program?
...rts only single-character switches and GetOpt::Long is much more flexible. From GetOpt::Long:
use Getopt::Long;
my $data = "file.dat";
my $length = 24;
my $verbose;
$result = GetOptions ("length=i" => \$length, # numeric
"file=s" => \$data, # string
...
Call a python function from jinja2
... syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
...
Differences between git remote update and fetch?
...
UPDATE: more information!
I should have done this from the start: I grepped the Git release notes in Git's Git repo (so meta!)
grep --color=always -R -C30 fetch Documentation/RelNotes/* | less
Then I did a less search for --all, and this is what I found under the release ...
SVN how to resolve new tree conflicts when file is added on two branches
...der version (2009) of the "Tree Conflict" design document:
XFAIL conflict from merge of add over versioned file
This test does a merge which brings a file addition without history onto an
existing versioned file.
This should be a tree conflict on the file of the 'local obstruction, incoming add upo...
Regular expressions in C: examples?
... @lixiang The last parameter to regcomp, cflags, is a bitmask. From pubs.opengroup.org/onlinepubs/009695399/functions/regcomp.html : "The cflags argument is the bitwise-inclusive OR of zero or more of the following flags...". If you OR-together zero, you'll get 0. I see that the Linux ma...
How to make a promise from setTimeout
...to make it possible to cancel the timeout, you can't just return a promise from later, because promises can't be cancelled.
But we can easily return an object with a cancel method and an accessor for the promise, and reject the promise on cancel:
const later = (delay, value) => {
let timer ...
How do I use Django templates without the rest of Django?
...a few different Google searches.)
The following code works:
>>> from django.template import Template, Context
>>> from django.conf import settings
>>> settings.configure()
>>> t = Template('My name is {{ my_name }}.')
>>> c = Context({'my_name': 'Daryl ...