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How do I measure the execution time of JavaScript code with callbacks?
... put this at the top of my app.
var start = process.hrtime();
var elapsed_time = function(note){
var precision = 3; // 3 decimal places
var elapsed = process.hrtime(start)[1] / 1000000; // divide by a million to get nano to milli
console.log(process.hrtime(start)[0] + " s, " + elapsed....
EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
...pper function in the Configuration class in the Seed method, and replaced calls to SaveChanges with calls to my function instead. This function would simply enumerate the errors within the EntityValidationErrors collection, and rethrow an exception where the Exception message lists the individual p...
jQuery: keyPress Backspace won't fire?
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Use keyup instead of keypress. This gets all the key codes when the user presses something
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How to explore web-based Google Play in another country?
if I go to play.google.com, it automatically recognizes my country and allow me to browse the apps for that country. I can change the language through the dropdown in the footer, or I can add &hl=code in the querystring...but that only changes the language...not the store content (the app lists and ...
How to deal with persistent storage (e.g. databases) in Docker
...nly container pattern must be abandoned in favour of the new volumes.
Actually the volume API is only a better way to achieve what was the data-container pattern.
If you create a container with a -v volume_name:/container/fs/path Docker will automatically create a named volume for you that can:
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Why does i = i + i give me 0?
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230 + 230 = -231
-231 + -231 = 0
...in int arithmetic, since it's essentially arithmetic mod 2^32.
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Fastest way(s) to move the cursor on a terminal command line?
...rl+Alt+] for backward search.
I recommend the second option. Ctrl+r is really handy and fast, no mucking about with editors, and you see the results before the command is run (unlike the history expansions).
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How can I make a Python script standalone executable to run without ANY dependency?
...'m building a Python application and don't want to force my clients to install Python and modules.
19 Answers
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Using arrays or std::vectors in C++, what's the performance gap?
...roblem you have to keep track of the size, and you need to delete them manually and do all sort of housekeeping.
Using arrays on the stack is also discouraged because you don't have range checking, and passing the array around will lose any information about its size (array to pointer conversion)....
How Do I Take a Screen Shot of a UIView?
...ntext is more a method you would override...
Note that it may not work in all views, specifically a year or so ago when I tried to use this with the live camera view it did not work.
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