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how to read System environment variable in Spring applicationContext
... for instance.
The variable systemProperties is predefined, see 6.4.1 XML based configuration.
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UICollectionView spacing margins
... contains a bunch of useful answers, I want to add a modern Swift version, based on William Hu's answer. It also improves two things:
The spacing between different lines will now always match the spacing between items in the same line.
By setting a minimum width, the
code automatically calculates ...
WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings
...ft.MvvmLight.Command will cause trouble mvvmlight.net/installing/changes#v5_0_2
– fuchs777
Jan 29 '16 at 12:49
...
Doctrine and composite unique keys
... notes here:
Column "name" is omitted since Doctrine is able to guess it based on
the property name
Since videoDimension and videoBitrate are both parts of the PK - there is no need to specify nullable = false
If required - the Composite PK may be composed of foreign keys, so feel free to add some...
How do I convert Word files to PDF programmatically? [closed]
...
var bits = p.EnhMetaFileBits;
var target = path1 +j.ToString()+ "_image.doc";
try
{
using (var ms = new MemoryStream((byte[])(bits)))
{
var image = System.Drawing.Image.FromStream(ms);
var pngTarget = Path.ChangeExtension(target, "png");
...
In Mongoose, how do I sort by date? (node.js)
...
You can also sort by the _id field. For example, to get the most recent record, you can do: await db.collection.findOne().sort({ _id: -1 });
– Mike K
Feb 8 at 11:00
...
How can I find the number of arguments of a Python function?
...lutions that either were deprecated or down right sneaky (peeking in the co_argcount attribute.)
– Dimitris Fasarakis Hilliard
Dec 16 '16 at 16:37
1
...
Standardize data columns in R
...
z = runif(10, 10, 20))
dat
dat2 <- dat %>% mutate_at(c("y", "z"), ~(scale(.) %>% as.vector))
dat2
which gives me this:
> dat
x y z
1 29.75859 3.633225 14.56091
2 30.05549 3.605387 12.65187
3 30.21689 3.318092 13.04672
4 29.53086 3.079992...
How Drupal works? [closed]
...hase populates Drupal’s internal configuration array and establishes the base URL
($base_url) of the site. The settings.php file is parsed via include_once(), and any variable or string overrides established there are applied. See the “Variable Overrides” and “String Overrides” sections of...
Using javadoc for Python documentation [closed]
... formatted date to display
:param priority: priority number
:param priority_name: priority name
:param message: message to display
:returns: formatted string
"""
Or extended with type information:
"""Replaces template placeholder with values.
:param timestamp: formatted date to display
:type tim...