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When to use .First and when to use .FirstOrDefault with LINQ?
... when I know or expect the sequence to have at least one element. In other words, when it is an exceptional occurrence that the sequence is empty.
Use FirstOrDefault() when you know that you will need to check whether there was an element or not. In other words, when it is legal for the sequence to...
An efficient compression algorithm for short text strings [closed]
...f coding, not compression per se (at least not entirely). He uses a static word and letter dictionary.
– Roy Tinker
Oct 27 '10 at 18:46
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What is your single most favorite command-line trick using Bash? [closed]
... Similar things you can do: mkdir testdir; cd !$.. This runs cd [last word of previous line] (in the example, cd testdir)
– dbr
Sep 16 '08 at 10:07
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(this == null) in C#!
...ror):
§ 7.5.7 This access
A this-access consists of the reserved word this.
this-access:
this
A this-access is permitted only in the block of an instance constructor, an instance method, or an instance accessor.
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Why should text files end with a newline?
... be easier to modify the token stream rather than the parser — in other words, add an “artificial newline” token to the end of the input.
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How can I replace every occurrence of a String in a file with PowerShell?
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You could try something like this:
$path = "C:\testFile.txt"
$word = "searchword"
$replacement = "ReplacementText"
$text = get-content $path
$newText = $text -replace $word,$replacement
$newText > $path
sha...
What is the difference between user and kernel modes in operating systems?
...rwise, it could set itself to ring 0 and rings would be useless.
In other words, cannot modify the current segment descriptor, which determines the current ring.
cannot modify the page tables: How does x86 paging work?
In other words, cannot modify the CR3 register, and paging itself prevents modi...
When is null or undefined used in JavaScript? [duplicate]
...ecause "undefined" is indeed undefined. But "undefined" is not a reserved word in JavaScript. So you can just do this: var undefined = "Magic!"; // Yes this works Now your code may or may not work. It is better to do a typeof(x) !== "undefined"
– ProVega
A...
How to document a method with parameter(s)?
... may think this style looks "ugly". But I would say "ugly" is a subjective word. A more neutual way is to say, this style is not mainstream so it may look less familiar to you, thus less comfortable. Again, "comfortable" is also a subjective word. But the point is, all the benefits described above a...
Javascript fuzzy search that makes sense
... The only problem with this library that I faced is when the word is complete but spelled incorrectly for example, if the correct word was "XRP" and If i searched "XRT" it doesnt give me a score
– PirateApp
Dec 23 '17 at 5:02
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