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Why is SELECT * considered harmful?
...ecially off a narrow table I might not be familiar with, SELECT * is often my best friend. It helps me just see what's going on without having to do a boatload of research as to what the underlying column names are. This gets to be a bigger "plus" the longer the column names get.
When * means "a r...
How to pass the values from one activity to previous activity
...
Reto - would you mind looking at my most recent question regarding a similar circumstance.
– Bryan Potts
Sep 13 at 14:20
add a commen...
What are the undocumented features and limitations of the Windows FINDSTR command?
... @CraigYoung - You are right about the search string sources. I edited my answer, thanks.
– dbenham
Apr 7 '14 at 12:34
1
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How do I parse JSON with Objective-C?
...answered Oct 17 '11 at 13:35
TommyTommy
95.9k1111 gold badges171171 silver badges190190 bronze badges
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event Action vs event EventHandler
...
Based on some of the previous answers, I'm going to break my answer down into three areas.
First, physical limitations of using Action<T1, T2, T2... > vs using a derived class of EventArgs. There are three: First, if you change the number or types of parameters, every method ...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
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So it is my understanding that disabled implies readonly but readonly does not imply disabled. In other words if an element has the disabled attribute then there is no need to also include the readonly attribute. Correct?
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Difference between application/x-javascript and text/javascript content types
...re issue - you have said that I can omit it entirely (only HTML5 ? ) - but my question (which was later edited by someone) was specifically about JS in PHP - will it work as PHP/JS combo on all servers/browsers if I will omit it entirely ??
– Obmerk Kronen
Mar...
Convert columns to string in Pandas
...mpler:
# pandas >= 1.0
# Convenience function I call to help illustrate my point.
df = df.convert_dtypes()
df.dtypes
A string
B object
dtype: object
df.select_dtypes("string")
A
0 a
1 b
2 c
Readability
This is self-explanatory ;-)
OK, so should I stop using it right now?
...No. A...
How do I reflect over the members of dynamic object?
... For example, it might do something like this (I'm reusing an example from my blog post):
public class SampleObject : DynamicObject
{
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
result = binder.Name;
return true;
}
}
In this case, whe...
How to sort in-place using the merge sort algorithm?
...the fastest merge sort because it needs more swap operations. According to my test, it's faster than the standard version, which allocates extra spaces in every recursion. But it's slower than the optimized version, which doubles the original array in advance and uses it for further merging.
...