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What Computer Science concepts should I know? [closed]
...ncepts that helped my development (intellect and code):
Lexing, Parsing, String matching, Regex
Memoization
encapsulation/scoping/closures
caching
Recursion
Iterators/Generators
Functional programming - John Hughes' amazing article had me at "why"
These are whole domains of discrete math, but...
Find() vs. Where().FirstOrDefault()
...nsole.Write; The sited example is using in-memory "Find" against a list of strings, not going against a DB with primary keys. Perhaps the statement translation of the Find clause - which omits the need to do lambda expression parsing is the reason for the performance improvement in this case. Agains...
How to check if a float value is a whole number
...nd to 16 digits; 1.0000000000000001 is displayed as 1.0, in 3 the shortest string representation that produces the same value is shown.
– Martijn Pieters♦
Feb 5 '14 at 17:21
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How to test valid UUID/GUID?
...ck Overflow plus Accepted answer
Test and validate a GUID (guid.us)
Guid.ToString Method (String) (MSDN)
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Failed to locate the winutils binary in the hadoop binary path
...op.util.NativeCrc32.nativeComputeChunkedSumsBy teArray(II[BI[BIILjava/lang/String;JZ)V
– Kaushik Lele
Jun 20 '15 at 14:47
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How can I get the current user directory?
...whether this is Vista/Win7 or XP and without using environment variables:
string path = Directory.GetParent(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)).FullName;
if ( Environment.OSVersion.Version.Major >= 6 ) {
path = Directory.GetParent(path).ToString();
}
Thoug...
/bin/sh: pushd: not found
...Actually my PS1 is (\u) \h:\w> but I just stripped it down to a generic string now for the answer. The prompt in DOS is also ending with > by default ($P$G IIRC), and I like that.
– hlovdal
Mar 4 '11 at 12:28
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Post JSON using Python Requests
...eter of requests works fine with dictionaries. No need for converting to a string.
– Advait S
Jul 2 '18 at 6:32
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Use “ENTER” key on softkeyboard instead of clicking button
...="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/search_hint"
android:inputType="text"
android:imeOptions="actionSend" />
You can then listen for presses on the action button by defining a TextView.OnEditorActionListener for the EditText element. In your...
Validate that end date is greater than start date with jQuery
...r2 = $('#datefield2-id').val();
I'd strongly recommend to parse the date strings before comparing them. Javascript's Date object has a parse()-Method, but it only supports US date formats (YYYY/MM/DD). It returns the milliseconds since the beginning of the unix epoch, so you can simply compare you...