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How does Google's Page Speed lossless image compression work?
...om build tool which compresses images with both optipng and pngcrush, then selects the smaller file. Still, Page Speed complains about non-optimal images. So which tool do they really use?
– user123444555621
Sep 10 '12 at 7:42
...
How to create a sequence of integers in C#?
...
Linq projection with the rarely used indexer overload (i):
(new int[11]).Select((o,i) => i)
I prefer this method for its flexibilty.
For example, if I want evens:
(new int[11]).Select((item,i) => i*2)
Or if I want 5 minute increments of an hour:
(new int[12]).Select((item,i) => i*5...
How to do an INNER JOIN on multiple columns
...n once by giving the joined tables an alias, as in the following example:
SELECT
airline, flt_no, fairport, tairport, depart, arrive, fare
FROM
flights
INNER JOIN
airports from_port ON (from_port.code = flights.fairport)
INNER JOIN
airports to_port ON (to_port.code = flights.tair...
How to create a self-signed certificate for a domain name for development?
...g the IIS Manager
Launch the IIS Manager
At the server level, under IIS, select Server Certificates
On the right hand side under Actions select Create Self-Signed Certificate
Where it says "Specify a friendly name for the certificate" type in an appropriate name for reference.
Examples: www.dom...
How does the SQL injection from the “Bobby Tables” XKCD comic work?
..., the parenthesis makes more sense with an INSERT. Thinking backwards, the SELECT would not run anyway as the Insert of the Little Bobby Tables in the table would have already dropped the table.
– ypercubeᵀᴹ
Jan 21 '13 at 21:41
...
Delete branches in Bitbucket
...
in Bitbucket go to branches in left hand side menu.
Select your branch you want to delete.
Go to action column, click on three dots (...) and select delete.
share
|
improve t...
Count lines of code in all java classes in Android Studio
...all the latest version
To install
Run Android Studio
From the menu bar, select File-->Settings
Under IDE Settings, click Plugins, and then click Install plugin from disk
Navigate to the folder where you downloaded the plugin and double-click it
Restart Android Studio
To count the lines
Che...
How to find children of nodes using BeautifulSoup
...
This answers the question how to select <a>link1</a> in the HTML given in the question, but this will FAIL when the first <li class="test"> will contain no <a> elements and there are other li elements with test class that contains<...
Condition within JOIN or WHERE
...of filtering criteria more easily maintainable.
For example, instead of:
SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
ON ca.CustomerID = c.CustomerID
AND c.State = 'NY'
INNER JOIN Accounts a
ON ca.AccountID = a.AccountID
AND a.Status = 1
Write:
SELECT *
FROM Customer...
CSS “and” and “or”
...
&& works by stringing-together multiple selectors like-so:
<div class="class1 class2"></div>
div.class1.class2
{
/* foo */
}
Another example:
<input type="radio" class="class1" />
input[type="radio"].class1
{
/* foo */
}
|| works by se...