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How to print out the contents of a vector?
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If you're going to do this, why test if (i != last) each time in the loop? Instead, if the container isn't empty then (a) send the first element, and then (b) loop-send the remaining elements, printing the separator first (as a prefix). No inner loop test (apart from the loop cond...
Rails migrations: self.up and self.down versus change
...end
But:
You had to avoid using change method which allows to save some time. For example, if you didn’t need to update column value immediately after it’s adding you would cut this code down to like this:
def change
add_column :users, :location, :string
end
On up it will add column to t...
Interface or an Abstract Class: which one to use?
...s, that means each child class may only conform to a single contract. Sometimes this a good thing, when you want to force your user-programmers along a particular path. Other times it would be bad. Imagine if PHP's Countable and Iterator interfaces were abstract classes instead of interfaces.
On...
Proper way to return JSON using node or Express
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Thank you for your time. To be honest with you, I do not have a problem on my end. It is just that someone (in different timezone) complained about the format that I was using because he wanted to do a get and for some reason they could not rea...
Git Tag list, display commit sha1 hashes
...other alias (which is a bummer).
If you want to see the commit date and time, try:
git log --tags --no-walk --date=iso-local --pretty='%C(auto)%h %cd%d %s'
You can use other date formats in the --date option as well as fully control the output to match your unique taste in the --pretty option....
Check if directory mounted with bash
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You actually have something mounted at the time you ran the 'mountpoint' command? Even if it's intended to be a mountpoint, unless it actually has something mounted, it's just a directory.
– Mark J. Bobak
Feb 23 '12 at 22:57
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Textarea Auto height [duplicate]
... any external libraries. This answer probably hasn't helped anyone in some time.
– Jayant Bhawal
Jul 29 '16 at 9:37
9
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What exceptions should be thrown for invalid or unexpected parameters in .NET?
...der's answer enlightened me. An input is invalid if it is not valid at any time, while an input is unexpected if it is not valid for the current state of the system. So in the later case an InvalidOperationException is a reasonable choice.
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Where is the list of predefined Maven properties
...tory>/my/path</sourceDirectory>
Also helpful - you can do a real time evaluation of properties via the command line execution of mvn help:evaluate while in the same dir as the POM.
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Chrome DevTools Devices does not detect device when plugged in
...ere had to be a faster way as the Android SDK was over 1GB download.
This time I tried:
Follow steps at https://developers.google.com/chrome-developer-tools/docs/remote-debugging
Install Windows USB driver http://developer.samsung.com/android/tools-sdks/Samsung-Andorid-USB-Driver-for-Windows (the...