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How to load images dynamically (or lazily) when users scrolls them into view
...urce, the page shows X number of <img> tags but they are not fetched from the server straight away ). What is this technique called, how does it work and in how many browsers does it work. And is there a jQuery plugin that can achieve this behavior with minimum coding.
...
Git: Ignore tracked files
...
Another approach (from a now deleted answer by Seth Robertson, but I found it helpful so resurrecting it) is to maintain a "tracked" template file, then have local untracked version of it, ex: "config.sample.ini" or "config.ini.template" see h...
Easily measure elapsed time
..., I use a free function, outside the class. This allows for measuring time from the construction of an object, to the finish of an asynch call.
– utnapistim
May 7 '14 at 8:19
8
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How to remove space between axis & area-plot in ggplot2?
...n's answer for further possibilities in the latest versions of ggplot2.
From ?scale_x_continuous about the expand-argument:
Vector of range expansion constants used to add some padding around
the data, to ensure that they are placed some distance away from the
axes. The defaults are to ex...
Disable Browser Link - which toolbar
...BrowserLink" value="false"></add>
</appSettings>
or do it from the toolbar:
If that button isn't available, go to VIEW > Toolbars > Standard and make sure it's checked. Keep in mind it's only available in VS2013 and later.
...
difference between foldLeft and reduceLeft in Scala
...e next value.
reduceLeft on the other hand will first combine two values from the list and apply those to the closure. Next it will combine the rest of the values with the cumulative result. See:
List(1,3,5).reduceLeft { (a, b) => println("a " + a + ", b " + b); a + b }
If the list is empty ...
How to encode a URL in Swift [duplicate]
...(Section 5.1), apparently
because they fail to distinguish query data from path data when
looking for hierarchical separators. However, as query components
are often used to carry identifying information in the form of
"key=value" pairs and one frequently used value is a referenc...
mongodb count num of distinct values per field/key
...ation API. To complicate the case we're grouping by case-insensitive words from array property of the document.
db.articles.aggregate([
{
$match: {
keywords: { $not: {$size: 0} }
}
},
{ $unwind: "$keywords" },
{
$group: {
_id: {$toLowe...
Shallow copy of a Map in Java
...ot a HashMap), you should use Map#putAll():
Copies all of the mappings from the specified map to this map
(optional operation). The effect of this call is equivalent to that of
calling put(k, v) on this map once for each mapping from key k to
value v in the specified map.
Example:
// Ha...
What is the purpose of @SmallTest, @MediumTest, and @LargeTest annotations in Android?
...pment?
You can run a group of tests annotated with specific annotation.
From AndroidJUnitRunner documentation:
Running a specific test size i.e. annotated with SmallTest or MediumTest or LargeTest:
adb shell am instrument -w -e size [small|medium|large] com.android.foo/android.support.t...