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jQuery Plugin: Adding Callback functionality
... var options = $.extend({
callback: function() {}
}, arguments[0] || {});
// call the callback and apply the scope:
options.callback.call(this);
};
Use it like this:
$('.elem').myPlugin({
callback: function() {
// some action
}
});
...
Base64 encoding and decoding in client-side Javascript
...
Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Take a look at this Stackoverflow question. It's using btoa() and atob() functions.
For server-side JavaScript (Node), you can use Buffers to decode.
If you are going for a cross-browser solut...
How does grep run so fast?
...omparison
# (everything is in the buffer cache)
$ time grep -c 'tg=f_c' 20140910.log
28
0.168u 0.068s 0:00.26
$ time grep -c ' /cc/merchant.json tg=f_c' 20140910.log
28
0.100u 0.056s 0:00.17
The longer form is 35% faster!
How come? Boyer-Moore consructs a skip-forward table from the pattern-st...
How do I calculate the normal vector of a line segment?
...
answered Aug 7 '09 at 8:49
Oren TrutnerOren Trutner
22k77 gold badges5050 silver badges5555 bronze badges
...
In JavaScript, is returning out of a switch statement considered a better practice than using break?
...
10
@Mark Costello's answer made me thank a bit more about your question. I think you're looking for a general "best practice" guideline, but i...
Get city name using geolocation
...
204
You would do something like that using Google API.
Please note you must include the google ma...
How can you debug a CORS request with cURL?
...successful, these headers shouldn't appear, or the HTTP response won't be 200.
You can also specify additional headers, such as User-Agent, by using the -H flag.
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...
How to make a promise from setTimeout
...
Update (2017)
Here in 2017, Promises are built into JavaScript, they were added by the ES2015 spec (polyfills are available for outdated environments like IE8-IE11). The syntax they went with uses a callback you pass into the Promise...
What is the difference between 'log' and 'symlog'?
...de
pyplot.ion()
# Draw the grid lines
pyplot.grid(True)
# Numbers from -50 to 50, with 0.1 as step
xdomain = numpy.arange(-50,50, 0.1)
# Plots a simple linear function 'f(x) = x'
pyplot.plot(xdomain, xdomain)
# Plots 'sin(x)'
pyplot.plot(xdomain, numpy.sin(xdomain))
# 'linear' is the default mod...
How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
...ing like this:
$ env -i perl -V
...
@INC:
/usr/lib/perl5/site_perl/5.18.0/x86_64-linux-thread-multi-ld
/usr/lib/perl5/site_perl/5.18.0
/usr/lib/perl5/5.18.0/x86_64-linux-thread-multi-ld
/usr/lib/perl5/5.18.0
.
Note . at the end; this is the current directory (which is not necessarily the ...
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