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Sorting dropdown alphabetically in AngularJS
...utting track by after order filter wasn't intuitive and this answer is the top search result from google.
– MushinNoShin
Aug 27 '15 at 14:01
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What are forward declarations in C++?
...-declaration and just type the declaration of the function yourself at the top of the file. If you're only using a few functions, this can really make your compiles quicker compared to always #including the header. For really large projects, the difference could be an hour or more of compile time b...
What are bitwise operators?
...ly multiply by a power of two, but watch out for shifting a 1-bit into the top bit - this makes the number negative unless it's unsigned. It's also useful when dealing with different sizes of data. For example, reading an integer from four bytes:
int val = (A << 24) | (B << 16) | (C &...
What does axis in pandas mean?
... we do the same process for dataframe2.
Basically, stacking dataframe2 on top of dataframe1 or vice a versa.
E.g making a pile of books on a table or floor
axis=1 means along "columns". It's a column-wise operation.
Suppose, to perform concat() operation on dataframe1 & dataframe2,
we will...
How to change the color of an svg element?
...lor; }
body {
background: #ddd;
text-align: center;
padding-top: 2em;
}
.parent {
width: 320px;
height: 50px;
display: block;
transition: all 0.3s;
cursor: pointer;
padding: 12px;
box-sizing: border-box;
}
/*** desired colors for children ***/
.parent{
...
For each row return the column name of the largest value
..., V1:V3) %>%
group_by(id) %>%
filter(cnt == max(cnt)) %>% # top_n(cnt, n = 1) also works
arrange(id)
# A tibble: 4 x 3
# Groups: id [3]
id dept cnt
<chr> <chr> <dbl>
1 1 V3 9.
2 2 V1 8.
3 3 V2 5.
4 3 V3 5.
# If...
Best way to combine two or more byte arrays in C#
...te: The above block requires you adding the following namespace at the the top for it to work.
using System.Linq;
To Jon Skeet's point regarding iteration of the subsequent data structures (byte array vs. IEnumerable<byte>), I re-ran the last timing test (1 million elements, 4000 iterations...
Why java classes do not inherit annotations from implemented interfaces?
...cess will be repeated until an annotation
for this type is found, or the top of the class hierarchy (Object) is
reached. If no superclass has an annotation for this type, then the
query will indicate that the class in question has no such annotation.
Note that this meta-annotation type has n...
Extract traceback info from an exception object
...nformation. I'm including it here only because this answer is stuck at the top, and Python 3 is becoming more common.
In Python 2
It's annoyingly complex. The trouble with tracebacks is that they have references to stack frames, and stack frames have references to the tracebacks that have referenc...
Async call with await in HttpClient never returns
...
Just a heads up - if you miss the await at the top level in an ASP.NET controller, and you return the task instead of the result as a response, it actually just hangs in the nested await call(s) with no errors. A silly mistake, but had I seen this post it might have saved...