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When should one use RxJava Observable and when simple Callback on Android?
...y you not only want to retrieve the userPhoto, but you have an Instagram-clone, and you want to retrieve 2 JSONs:
1. getUserDetails()
2. getUserPhotos()
You want to load these two JSONs in parallel, and when both are loaded, the page should be displayed.
The callback variant will become a bit more ...
How to delete last character in a string in C#?
...
I can't believe this was the chosen answer... the one just below this by @BrianRasmussen is so much simpler.
– FastTrack
Mar 19 '14 at 16:09
...
What is the naming convention in Python for variable and function names?
...ou using, that doesn't know that underscore continues a word? Lots of free ones that do. I use Notepad++, if an IDE isn't available. For that, can download a template for python editing. (Others can recommend even more useful free downloads.)
– ToolmakerSteve
D...
How can I delete one element from an array by value
... What if there are multiple entries of 3 and we wanted to delete only one of them? (this is related so asking this here might be best)
– Navneet
Oct 18 '12 at 18:24
114
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How do I echo and send console output to a file in a bat script?
...e tee.bat) you can.
I try to explain the redirection a bit.
You redirect one of the ten streams with > file or < file
It is unimportant, if the redirection is before or after the command,
so these two lines are nearly the same.
dir > file.txt
> file.txt dir
The redirection in this e...
Reading my own Jar's Manifest
...
You can do one of two things:
Call getResources() and iterate through the returned collection of URLs, reading them as manifests until you find yours:
Enumeration<URL> resources = getClass().getClassLoader()
.getResources("ME...
Get the distance between two geo points
...t exceed 4 decimal degrees.
The standard formula (Haversine) is the exact one (that is, it works for any couple of longitude/latitude on earth) but is much slower as it needs 7 trigonometric and 2 square roots. If your couple of points are not too far apart, and absolute precision is not paramount,...
How to change time and timezone in iPhone simulator?
How do I change time and time zone in the iPhone simulator?
11 Answers
11
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Can I have multiple :before pseudo-elements for the same element?
...
In CSS2.1, an element can only have at most one of any kind of pseudo-element at any time. (This means an element can have both a :before and an :after pseudo-element — it just cannot have more than one of each kind.)
As a result, when you have multiple :before rule...
Split value from one field to two
...tion. However you can create a user defined function for this, such as the one described in the following article:
MySQL Split String Function by Federico Cargnelutti
With that function:
DELIMITER $$
CREATE FUNCTION SPLIT_STR(
x VARCHAR(255),
delim VARCHAR(12),
pos INT
)
RETURNS VARCHAR...