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Is Java's assertEquals method reliable?
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You should always use .equals() when comparing Strings in Java.
JUnit calls the .equals() method to determine equality in the method assertEquals(Object o1, Object o2).
So, you are definitely safe using assertEquals(string1, string2). (Because Strings are Objects)
Here is a link to a great St...
What does new self(); mean in PHP?
...is seems to be an implementation of the Singleton pattern.
The function is called statically and checks whether the static class has the variable $_instance set.
If it isn't, it initializes an instance of itself (new self()) and stores it in $_instance.
If you call className::getInstance() you wi...
How to play audio?
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It's easy, just get your audio element and call the play() method:
document.getElementById('yourAudioTag').play();
Check out this example: http://www.storiesinflight.com/html5/audio.html
This site uncovers some of the other cool things you can do such as load(), p...
ViewPager.setOffscreenPageLimit(0) doesn't work as expected
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Am I missing something, setUserVisibleHint called before onCreateView
– Anton Makov
Mar 24 '17 at 12:38
1
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How do I change Bootstrap 3 column order on mobile layout?
...ble to change the order, even when the columns are full-width stacked vertically, thanks to Bootstrap 4 flexbox. OFC, the push pull method will still work, but now there are other ways to change column order in Bootstrap 4, making it possible to re-order full-width columns.
Method 1 - Use flex-colu...
What is the “__v” field in Mongoose
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You can also call resultFromMongo.toObject({ versionKey: false }), to surppress the value.
– Leo Gerber
Feb 2 '17 at 20:08
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Get filename and path from URI from mediastore
... thumbnail, the function "ThumbnailUtils.createVideoThumbnail" just can be called with a path of type String, does not accepts any tipe of inputStreams.
– ElYeante
Dec 4 '13 at 18:04
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MongoDB/NoSQL: Keeping Document Change History
...k changes to one or more specific entities in a database. I've heard this called row versioning, a log table or a history table (I'm sure there are other names for it). There are a number of ways to approach it in an RDBMS--you can write all changes from all source tables to a single table (more o...
Why is arr = [] faster than arr = new Array?
...MBER, IDENTIFIER)
new Array: NEW, IDENTIFIER
new Array(): NEW, IDENTIFIER, CALL
new Array(5): NEW, IDENTIFIER, CALL (NUMBER)
new Array(5,4): NEW, IDENTIFIER, CALL (NUMBER, NUMBER)
new Array(5, foo): NEW, IDENTIFIER, CALL (NUMBER, IDENTIFIER)
Hopefully this should provide you a sufficient visualiza...
Is there a VB.NET equivalent for C#'s '??' operator?
...uation to conditionally return one of two
values. The If operator can be called with three arguments or with two
arguments.
If( [argument1,] argument2, argument3 )
If Operator Called with Two Arguments
The first argument to If can be omitted. This enables the operator
to be calle...