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PDO's query vs execute
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query runs a standard SQL statement and requires you to properly escape all data to avoid SQL Injections and other issues.
execute runs a prepared statement which allows you to bind parameters to avoid the need to escape or quote the param...
How to truncate the time on a DateTime object in Python?
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Note that python 2 and python 3 docs both state that the replace() method returns a datetime object, so the correct incantation would be: dt = datetime.datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
– Br...
How do you clear a slice in Go?
...- memory not used, but potentially reachable (after re-slicing of 'slice') and thus not garbage "collectable".
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What's the difference between Protocol Buffers and Flatbuffers?
Both are serialization libraries and are developed by Google developers. Is there any big difference between them? Is it a lot of work to convert code using Protocol Buffers to use FlatBuffers ?
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Example JavaScript code to parse CSV data
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"(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
// Standard fields.
"([^\"\\" + strDelimiter + "\\r\\n]*))"
),
"gi"
);
// Create an array to hold our data. Give the array
// a default empty first row.
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promise already under evaluation: recursive default argument reference or earlier problems?
...1, f..=f){ g.(1,T, f.=f..) }? In cases with more recursions, is it a good and safe practice adding more .? (2) if f is a non-function argument, for example g <- function(x, T, f=f){ exp(-fx/T) }* and test<- function(g.=g, T=1, f=f){ g.(1,T, f=f.) }, will using the same name for both formal a...
Java 8 Stream and operation on arrays
...is a little more difficult because I can't think of a way to get the value AND the index at the same time as a Stream operation. This means you probably have to stream over the indexes of the array.
//in this example a[] and b[] are same length
int[] a = ...
int[] b = ...
int[] result = new int[a...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...n the future.
First I set up the subclass call MyCollectionViewFlowLayout and then in interface builder I changed the collection view layout to Custom and selected my flow layout subclass.
Because you're doing it this way you can't specify items sizes, etc... in IB so in MyCollectionViewFlowLayout...
Why should I use tags vs. release/beta branches for versioning?
I've been using git for about a year and would like to use tagging to, well, tag commits at different versions. I've found lots of info on the commands to use to work with tags, but what I'd like to know is why use tagging at all if I can just create a new branch called 1.1.0 and not have to cloud...
Append column to pandas dataframe
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@BenDundee Join and concat use a lot of the same code under the hood, so the "right" way probably only matters when you consider edge cases. For instance here if both DataFrames had a 'data' column the join would fail, whereas a concat would...