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Java's L number (long) specification
It appears that when you type in a number in Java, the compiler automatically reads it as an integer, which is why when you type in (long) 6000000000 (not in integer's range) it will complain that 6000000000 is not an integer. To correct this, I had to specify 6000000000L . I just learned abo...
Is there a function to make a copy of a PHP array to another?
...ewLarsson raises a point in the comments below. PHP has a special feature called "references". They are somewhat similar to pointers in languages like C/C++, but not quite the same. If your array contains references, then while the array itself is passed by copy, the references will still resolve to...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
...It's a FragmentPagerAdapter for non-support fragments.
Android Studio Installation
Please add follow Gradle dependencies
dependencies {
compile 'com.android.support:support-v13:+'
}
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How does collections.defaultdict work?
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Usually, a Python dictionary throws a KeyError if you try to get an item with a key that is not currently in the dictionary. The defaultdict in contrast will simply create any items that you try to access (provided of course th...
How to change webservice url endpoint?
...t supposed to change it. More importantly, from an environment to another (test vs live), the endpoint url is likely to change.. and nobody wants to tweak the wsdl and recompile in this case.
– Myobis
Dec 16 '13 at 9:56
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What is the motivation for bringing Symbols to ES6?
...o account and this way two symbols may be non-unique.
var a1 = Symbol.for("test");
var a2 = Symbol.for("test");
console.log(a1 == a2); //true!
Let's call those symbols "second-type" symbols. They do not intersect with the "first-type" symbols (i.e. the ones defined with Symbol(data)) in any way.
Th...
Why does “_” (underscore) match “-” (hyphen)?
...you are in a pattern context. e.g. inside a LIKE statement. When replacing all _ with an - : UPDATE sys_file set identifier = REPLACE(identifier, '_', '-') WHERE identifier LIKE '%\_%';. Notice the escaping inside LIKE and no escaping inside REPLACE. (I find it strange though that you are not in a p...
How to get Maven project version to the bash command line
...in outputs through the logger which has been silenced by the -q switch. (latest available version of the plugin is 3.1.0 released on June, 3rd 2018)
Karl Heinz Marbaise (https://github.com/khmarbaise) fixed it by adding an optional parameter that allows you to call it in the following way:
mvn help...
Make anchor link go some pixels above where it's linked to
...lay of 1 is arbitrary and may not always work right (although it did in my testing).
NOTE:
To use jQuery, you could just replace window.addEventListener with $(window).on in the examples. Thanks @Neon.
EDIT 2:
As pointed out by a few, the above will fail if you click on the same anchor link two ...
How exactly does a generator comprehension work?
... generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one by one.
>>> my_list = [1, 3, 5, 9, 2, 6]
>>> filtered_list = [item for item in my_list i...