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Is the pImpl idiom really used in practice?
I am reading the book "Em>x m>ceptional C++" by Herb Sutter, and in that book I have learned about the pImpl idiom. Basically, the idea is to create a structure for the private objects of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementatio...
Set cookie and get cookie with JavaScript [duplicate]
...en I choose a file, it should be saved to a cookie for about a week. The nem>x m>t time you open your HTML file, it should be the previous file you've chosen.
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What is the difference between supervised learning and unsupervised learning? [closed]
...tween supervised and unsupervised learning?
Can you provide a basic, easy em>x m>planation with an em>x m>ample?
29 Answers
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Mac OS m>X m> Terminal: Map option+delete to “backward delete word”
... to map it from Preferences -> Settings -> Keyboard, but the "key" combo bom>x m> has only "forward delete" but no "delete". My keyboard on the other hand has only "delete" and no "forward delete"!
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Em>x m>tract a dplyr tbl column as a vector
...umn a bit nicer (easier to type, and easier to read):
pull <- function(m>x m>,y) {m>x m>[,if(is.name(substitute(y))) deparse(substitute(y)) else y, drop = FALSE][[1]]}
This lets you do either of these:
iris2 %>% pull('Species')
iris2 %>% pull(Species)
iris2 %>% pull(5)
Resulting in...
[1] ...
Ruby - test for array
... count on the variable. Write unit tests to make sure the method works as em>x m>pected.
– user132447
Mar 21 '12 at 14:55
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MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
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Nem>x m>t
446
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Safest way to convert float to integer in python?
...However these functions return the answer as a floating point number. For em>x m>ample:
10 Answers
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How does the ARM architecture differ from m>x m>86? [closed]
Is the m>x m>86 Architecture specially designed to work with a keyboard while ARM em>x m>pects to be mobile? What are the key differences between the two?
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PHP function to generate v4 UUID
...UUID in PHP. This is the closest I've been able to come. My knowledge in hem>x m>, decimal, binary, PHP's bitwise operators and the like is nearly non em>x m>istant. This function generates a valid v4 UUID up until one area. A v4 UUID should be in the form of:
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