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Entity Framework 4 Single() vs First() vs FirstOrDefault()
...ou really only have two different operations.
First - Expecting a result set that contains multiple items, give me the first item in that set.
Single - Expecting a single result back, give me that item.
The xxxxOrDefault() version just adds on "I don't want to consider an empty result set to be ...
How to read data from a zip file without having to unzip the entire file
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
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else {
createEditor();
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How to duplicate a whole line in Vim?
How do I duplicate a whole line in Vim in a similar way to Ctrl + D in IntelliJ IDEA/ Resharper or Ctrl + Alt + ↑ / ↓ in Eclipse ?
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
I want to perform my own complex operations on financial data in dataframes in a sequential manner.
10 Answers
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Python name mangling
...0
@property
def age(self):
return self._age
@age.setter
def age(self, age):
if age >= 0:
self._age = age
else:
self._age = 0
What about the double underscore? Well, the double underscore magic is used mainly to avoid ac...
Regex Email validation
...Compiled | RegexOptions.IgnoreCase | RegexOptions.ExplicitCapture;
// Set explicit regex match timeout, sufficient enough for email parsing
// Unless the global REGEX_DEFAULT_MATCH_TIMEOUT is already set
TimeSpan matchTimeout = TimeSpan.FromSeconds(2);
try
{
if (AppDoma...
Removing Data From ElasticSearch
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this is very useful for development and needing to reset back to scratch (empty) database. Thanks!!
– Artistan
Sep 23 '15 at 18:55
3
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Why can't C++ be parsed with a LR(1) parser?
...efined like this, whereas it should be interesting :
what is the smallest set of modifications to C++ grammar that would be necessary so that this new grammar could be perfectly parsed by a "non-context-free" yacc parser ? (making use only of one 'hack' : the typename/identifier disambiguation, the...
What exactly is LLVM?
...o build your own application. LLVM addresses this issue well by building a set of "modular and reusable compiler and toolchain technologies" which anyone could use to build compilers and language oriented software.
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Multiple lines of text in UILabel
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@JarredOlson Docs say " This property is set to byTruncatingTail by default."
– Bill
May 27 '17 at 23:00
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