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What are bitwise shift (bit-shift) operators and how do they work?
...a couple mistakes and added a 32-bit example)):
mov ax, 320; 2 cycles
mul word [row]; 22 CPU Cycles
mov di,ax; 2 cycles
add di, [column]; 2 cycles
; di = [row]*320 + [column]
; 16-bit addressing mode limitations:
; [di] is a valid addressing mode, but [ax] isn't, otherwise we could skip the last m...
How to style dt and dd so they are on the same line?
... This behaves awkwardly when you select (double click) the first word in the <dd>. It also selects the text inside the <dt> unless there's whitespace (or an &nbsp; if you're using htmlmin) between the <dt> and <dd>.
– KFunk
...
How do I sort strings alphabetically while accounting for value when a string is numeric?
...dded an extension to this version here which adds support for sorting with words. For my needs, splitting on spaces was sufficient, and I had little need to worry about mixed use words (e.g. test12 vs test3),
– matt.bungard
Sep 14 '18 at 19:38
...
What is Virtual DOM?
... method.
You must convert every class to className since class is reserved word in JavaScript.
Aside from the more major changes there are minor differences between the two DOMs including three attributes appearing in the Virtual DOM but not in the HTML DOM (key, ref and dangerouslySetInnerHTML).
A...
Converting a Uniform Distribution to a Normal Distribution
...hat a teacher of mine told me (he studied such generators, and I trust his word). I may be able to find you a reference.
– Alexandre C.
Aug 25 '11 at 6:56
7
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Is there any performance gain in indexing a boolean field?
...ally. You should think about it like a book. If there were only 3 kinds of words in a book and you index all of them, you would have the same number of index pages as normal pages.
There would be a performance gain if there are relatively few records of one value. For example, if you have 1000 rec...
static function in C
...
The static keyword in C is used in a compiled file (.c as opposed to .h) so that the function exists only in that file.
Normally, when you create a function, the compiler generates cruft the linker can use to, well, link a function call t...
Java naming convention for static final variables [duplicate]
...ariables of class types may conventionally be, a sequence of one or
more words, acronyms, or abbreviations, all uppercase, with components
separated by underscore "_" characters. Constant names should be
descriptive and not unnecessarily abbreviated. Conventionally they may
be any appropriat...
E11000 duplicate key error index in mongodb mongoose
...e is saying that there's already a record with null as the email. In other words, you already have a user without an email address.
The relevant documentation for this:
If a document does not have a value for the indexed field in a unique index, the index will store a null value for this document. ...
count number of lines in terminal output
...t to another programm. E.g. you would even not changing characters in your Word document with another text editor than Word, would you?
– Michael P
May 15 at 7:22
add a commen...