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check if a std::vector contains a certain object? [duplicate]
...td::set also guarantees all the added elements are unique, which saves you from having to do anything like if not contained then push_back()....
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Printing the last column of a line in a file
...ore lines in file and so the pipe to grep is never closed.
If you omit -f from tail the output is shown immediately:
tail file | grep A1 | awk '{print $NF}'
@EdMorton is right of course. Awk can search for A1 as well, which shortens the command line to
tail file | awk '/A1/ {print $NF}'
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Can you do this HTML layout without using tables?
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@igors, +1, you're right. Mind that this question is from 2009. ;)
– Milan Babuškov
Nov 22 '13 at 20:34
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What's the point of 'meta viewport user-scalable=no' in the Google Maps API
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On many devices (such as the iPhone), it prevents the user from using the browser's zoom. If you have a map and the browser does the zooming, then the user will see a big ol' pixelated image with huge pixelated labels. The idea is that the user should use the zooming provided by Go...
Django: Why do some model fields clash with each other?
... two foreign keys to User. Django automatically creates a reverse relation from User back to GameClaim, which is usually gameclaim_set. However, because you have two FKs, you would have two gameclaim_set attributes, which is obviously impossible. So you need to tell Django what name to use for the r...
:: (double colon) operator in Java 8
...perator is used for method referencing. So, one can extract static methods from classes by using it or methods from objects. The same operator can be used even for constructors. All cases mentioned here are exemplified in the code sample below.
The official documentation from Oracle can be found he...
Disable cross domain web security in Firefox
...ont-awesome download failed issue I was having on my local dev environment from a cross-origin restriction.
– Daniel Nalbach
Jun 4 '15 at 16:12
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How to get UILabel to respond to tap?
...ties pane, make sure "User Interaction Enabled" is checked for the label. From the tap gesture (at the bottom of your view controller in the storyboard), ctrl+click and drag to your ViewController.h file and create an Action. Then implement the action in the ViewController.m file.
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What are some better ways to avoid the do-while(0); hack in C++?
...defintions, you'll have to move that function (the one you're gonna return from) somewhere else, which reduces readability. It might end up with dozens of parameters, then, because having dozens of parameters is a bad thing, you'll decide to wrap them into struct, which will create new data type. To...
What's the best way to do “application settings” in Android? [closed]
...e the preferences instance, here is how you can retrieve the stored values from the preferences:
int storedPreference = preferences.getInt("storedInt", 0);
To store values in the preference file SharedPreference.Editor object has to be used. Editor is the nested interface of the SharedPreference...