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Can existing virtualenv be upgraded gracefully?
...e:
python -m venv --upgrade YOUR_VENV_DIRECTORY
I just upgraded my venv from Python 3.7.x to 3.8 on several projects without any issue.
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Javascript: How to loop through ALL DOM elements on a page?
... // Do something with the element here
}
Note that you could use querySelectorAll(), if it's available (IE9+, CSS in IE8), to just find elements with a particular class.
if (document.querySelectorAll)
var clsElements = document.querySelectorAll(".mySpeshalClass");
else
// loop through a...
How can I add a PHP page to WordPress?
...reen you'll see a Template dropdown in the Attributes widget to the right. Select your new template and publish the page.
Your new page will use the PHP code defined in templatename.php
Source: Creating Custom Page Templates for Global Use
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Copy rows from one Datatable to another DataTable?
...et = dtSource.Clone();
DataRow[] rowsToCopy;
rowsToCopy = dtSource.Select("key='" + matchString + "'");
foreach (DataRow temp in rowsToCopy)
{
dtTarget.ImportRow(temp);
}
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Efficiently updating database using SQLAlchemy ORM
...ill basically run the same SQL statement as the previous snippet, but also select the changed rows and expire any stale data in the session. If you know you aren't using any session data after the update you could also add synchronize_session=False to the update statement and get rid of that select....
How to use Active Support core extensions
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Does this work from the console? This is working for me:
$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.6.5
BuildVersion: 10H574
$ rails c
Loading development environment (Rails 3.0.3)
>> 1.week.ago
=> Sun, 14 Nov 2010 1...
How to read the Stock CPU Usage data
...
The numbers show the average load of the CPU in different time intervals. From left to right: last minute/last five minutes/last fifteen minutes
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Convert Dictionary to semicolon separated string in c#
...
using System.Linq;
string s = string.Join(";", myDict.Select(x => x.Key + "=" + x.Value).ToArray());
(And if you're using .NET 4, or newer, then you can omit the final ToArray call.)
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iOS forces rounded corners and glare on inputs
...n be extended to apply to all webkit styled form components such as input, select, button or textarea.
In reference to the original question, you wouldn't use the value 'none' when clearing any unit based css element.
Also be aware that this hides checkboxes in Chrome, so perhaps use something like ...
How to bring back “Browser mode” in IE11?
...e version of IE11 does in fact provide the ability to switch browser modes from the Emulation tab in the dev tools:
Having said that, the advice I've given here (and elsewhere) to avoid using compatibility modes for testing is still valid: If you want to test your site for compatibility with olde...