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Bash Script: count unique lines in file
...m a several hour network capture, one ip/port per line. Lines are of this format:
3 Answers
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Handlebars.js Else If
... single piece of data with more than three states which requires different formatting in each case? You may be able to force a CSS style into the data itself, but then you're pushing view-level concerns into your data. I can imagine sensible cases for an if/elseif/endif construct (or even a switch/m...
PostgreSQL delete with inner join
...
Another form that works with Postgres 9.1+ is combining a Common Table Expression with the USING statement for the join.
WITH prod AS (select m_product_id, upc from m_product where upc='7094')
DELETE FROM m_productprice B
USING prod...
Android: how to handle button click
... are #2 and #3. I will use a Button clickButton as an example.
2
is in the form of an anonymous class.
Button clickButton = (Button) findViewById(R.id.clickButton);
clickButton.setOnClickListener( new OnClickListener() {
@Override
public void onClick(View v) {
...
What is boxing and unboxing and what are the trade offs?
...tinctly less convenient than the other collections. However, when peak performance is needed it's worth a little inconvenience to avoid the overhead of boxing and unboxing.
* For this discussion, a primitive value is any that can be stored on the call stack, rather than stored as a pointer to a va...
How do negated patterns work in .gitignore?
...probably doing something different. Post another question (with complete information) if you want help.
– Cascabel
Aug 16 '12 at 4:13
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How to append one file to another in Linux from the shell?
...ed.
Update 20160919
In the comments tpartee suggests linking to backing information/sources. For an authoritative reference, I direct the kind reader to the sh man page at linuxcommand.org which states:
Before a command is executed, its input and output may be redirected
using a special nota...
CSS Selector that applies to elements with two classes
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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Media Queries - In between two widths
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Agree w/ @DavePowers. In my case, I had my media query formatted like @WalkerNuss, but had forgotten the first and after @media screen. Inserting the first and fixed this for me.
– Kyle Vassella
Mar 27 '18 at 17:10
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Python Dictionary to URL Parameters
...encode(). It takes a dictionary of key-value pairs, and converts it into a form suitable for a URL (e.g., key1=val1&key2=val2).
If you are using Python3, use urllib.parse.urlencode()
If you want to make a URL with repetitive params such as: p=1&p=2&p=3 you have two options:
>>&g...