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Passing parameters to addTarget:action:forControlEvents

...wsDetails: method here. You just create a selector to make button able to call it when certain action occurs (touch up in your case). Controls can use 3 types of selectors to respond to actions, all of them have predefined meaning of their parameters: with no parameters action:@selector(switchToN...
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How do you Encrypt and Decrypt a PHP String?

... You may also use GCM (which removes the need for a separate MAC). Additionally, ChaCha20 and Salsa20 (provided by libsodium) are stream ciphers and do not need special modes. Unless you chose GCM above, you should authenticate the ciphertext with HMAC-SHA-256 (or, for the stream ciphers, Poly1305 -...
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Only read selected columns

...g","Sep","Oct","Nov","Dec")) dat <- fread("data.txt", drop = c(8:13)) All result in: > data Year Jan Feb Mar Apr May Jun 1 2009 -41 -27 -25 -31 -31 -39 2 2010 -41 -27 -25 -31 -31 -39 3 2011 -21 -27 -2 -6 -10 -32 UPDATE: When you don't want fread to return a data.table, use the data.ta...
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How to check if click event is already bound - JQuery

...a(this[0], 'events')[type]; jQuery events are stored in a data object called events, so you could search in this: var button = $('#myButton'); if (-1 !== $.inArray(onButtonClicked, button.data('events').click)) { button.click(onButtonClicked); } It would be best, of course, if you could s...
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JavaScript OOP in NodeJS: how?

...onstructor.apply( this, arguments ); } //Pointless override to show super calls //note that for performance (e.g. inlining the below is impossible) //you should do //method.$getAge = _super.getAge; //and then use this.$getAge() instead of super() method.getAge = function() { return _super.getAge...
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What does “abstract over” mean?

...the similarities. We say that we abstract over the differences, but this really means we're integrating by the similarities. For example, consider a program that takes the sum of the numbers 1, 2, and 3: val sumOfOneTwoThree = 1 + 2 + 3 This program is not very interesting, since it's not very a...
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How to determine whether a given Linux is 32 bit or 64 bit?

...wk '{print $2}' Note: you can have a 64-bit CPU with a 32-bit kernel installed. (as ysdx mentions in his/her own answer, "Nowadays, a system can be multiarch so it does not make sense anyway. You might want to find the default target of the compiler") ...
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Do I have to guard against SQL injection if I used a dropdown?

... make sure the posted size is what you expect. $possibleOptions = array('All', 'Large', 'Medium', 'Small'); if(in_array($_POST['size'], $possibleOptions)) { // Expected } else { // Not Expected } Then use mysqli_* if you are using a version of php >= 5.3.0 which you should be, to sav...
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How do I have an enum bound combobox with custom string formatting for enum values?

... TypeConverter. I think this is what I was looking for. All hail Simon Svensson! [TypeConverter(typeof(EnumToStringUsingDescription))] Enum HowNice { [Description("Really Nice")] ReallyNice, [Description("Kinda Nice")] SortOfNice, [Description("Not Nice At All")] NotN...
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Where is shared_ptr?

...rking). Simply stating std , tr1 and <memory> is not helping at all! I have downloaded boosts and all but still it doesn't show up! Can someone help me by telling exactly where to find it? ...