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String variable interpolation Java [duplicate]
...should avoid String.format. Check performance comparison among Java string interpolation from redfin.
– MiaeKim
Oct 22 '19 at 22:18
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SQL MAX of multiple columns?
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Necro'ing this older post, but you could wrap each date into a COALESCE to handle NULL's. One of those WHEN statements would then look like: WHEN Date1 >= COALESCE(Date2,'') AND Date1 >= COALESCE(Date3,'') THEN Date3 (do the same for the other when's)
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How to check if a String contains only ASCII?
...I singleton.
Here ASCII includes all ASCII characters including the non-printable characters lower than 0x20 (space) such as tabs, line-feed / return but also BEL with code 0x07 and DEL with code 0x7F.
This code incorrectly uses characters rather than code points, even if code points are indicated...
What's the u prefix in a Python string?
...ignore'). But you should really read some of the answers and discussion on Converting a Unicode string and this excellent, excellent, primer on character encoding.
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ASP.NET MVC 3 Razor - Adding class to EditorFor
...mlHelper class that has the following benefits:
The method automatically converts the DateTime into the ShortDateString needed by the jQuery calendar (jQuery will fail if the time is present).
By default, the helper will apply the required htmlAttributes to display a jQuery calendar, but they can ...
How to code a BAT file to always run as admin mode?
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convert your batch file into .exe with this tool: http://www.battoexeconverter.com/ then you can run it as administrator
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Pandas - How to flatten a hierarchical index in columns
...eed.
From panda's own documentation:
MultiIndex.to_flat_index()
Convert a MultiIndex to an Index of Tuples containing the level values.
A simple example from its documentation:
import pandas as pd
print(pd.__version__) # '0.23.4'
index = pd.MultiIndex.from_product(
[['foo', 'ba...
How can I turn a List of Lists into a List in Java 8?
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You can use flatMap to flatten the internal lists (after converting them to Streams) into a single Stream, and then collect the result into a list:
List<List<Object>> list = ...
List<Object> flat =
list.stream()
.flatMap(List::stream)
.collec...
What does the keyword Set actually do in VBA?
...t is used to assign a reference to an object. The C equivalent would be
int i;
int* ref_i;
i = 4; // Assigning a value (in VBA: i = 4)
ref_i = &i; //assigning a reference (in VBA: set ref_i = i)
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Parsing CSV files in C#, with header
...ributes like default values, replacements for NULL values and so forth), point the FileHelpers engine at a file, and bingo - you get back all the entries from that file. One simple operation - great performance!
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