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How to get execution time in rails console?
I want compare time of execution Post.all and SELECT * FROM posts (or some other statements) How can i get execution time of Post.all ?
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How do you use vim's quickfix feature?
... <Enter> :.cc | wincmd p<CR> (again untested) and use Enter to select an error without switching out of the quickfix window.
– DrAl
Nov 17 '09 at 9:45
1
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Populate nested array in mongoose
... },{
path: 'AnotherRef',
model: 'AnotherRef',
select: 'firstname lastname'
}]
})
.exec(function(err, docs) {});
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AVAudioPlayer throws breakpoint in debug mode
...Breakpoint navigator in Xcode.
Control-click on the 'All Exceptions' line.
Select the 'Edit Breakpoint...' option.
Change the Exception from All to Objective-C.
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When is each sorting algorithm used? [closed]
...s O(N^2), it has a very small constant and is a stable sort.
Bubble sort, selection sort: When you're doing something quick and dirty and for some reason you can't just use the standard library's sorting algorithm. The only advantage these have over insertion sort is being slightly easier to impl...
static const vs #define
...l than a post-preprocessing "if" as the code need not be compilable if not selected by the preprocessor), use #undef-ine, redefine etc.
substituted text has to be exposed:
in the translation unit it's used by, which means macros in libraries for client use must be in the header, so make and other ...
SQL Server Escape an Underscore
...expected. Instead of trying to hassle with it, I went with a work around:
select * from information_schema.columns
where replace(table_name,'_','!') not like '%!%'
order by table_name
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How to debug external class library projects in visual studio?
...for the project you are interested in
Right Click -> Load Symbols -> Select the Path to the .PDB for your other project
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How can I pass a parameter to a setTimeout() callback?
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I'm not sure why this answer wasn't selected as the best. Using an anonymous function works, sure, but if you can simply pass a third parameter into the original setTimeout function call... why not?
– Kris Schouw
Sep 21 '1...
Are nested HTML comments possible?
...ere. Its parent element has to be either the <body> element or a few select others.
– John E
Jan 17 '19 at 14:09
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