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How does Trello access the user's clipboard?

...ey is hit. (Then we hide the textarea when the Ctrl key comes up) Specifically, Trello does this: TrelloClipboard = new class constructor: -> @value = "" $(document).keydown (e) => # Only do this if there's something to be put on the clipboard, and it # looks like the...
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How to link to part of the same document in Markdown?

... Github automatically parses anchor tags out of your headers. So you can do the following: [Custom foo description](#foo) # Foo In the above case, the Foo header has generated an anchor tag with the name foo Note: just one # for all hea...
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When to use enumerateObjectsUsingBlock vs. for

...lly in the context. While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting: enumerateObjectsUsingBlock: will be as fast or faster than fast enumeration (for(... in ...) uses the NSFastEnumeratio...
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In C++, is it still bad practice to return a vector from a function?

...so says nothing about v-tables, so you can't be sure that virtual function calls are efficient either. Essentially, you need to put some faith in the compiler at times. – Peter Alexander Jun 28 '10 at 23:04 ...
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What issues should be considered when overriding equals and hashCode in Java?

... The theory (for the language lawyers and the mathematically inclined): equals() (javadoc) must define an equivalence relation (it must be reflexive, symmetric, and transitive). In addition, it must be consistent (if the objects are not modified, then it must keep returning the ...
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Declaration/definition of variables locations in ObjectiveC?

...ther classes too, using the usual square bracket syntax to send messages (call methods): // OtherClass.m int v = [myClass myVar]; // assuming myClass is an object of type MyClass. [myClass setMyVar:v+1]; Because manually declaring and implementing every accessor method was quite annoying, @prop...
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How to use Checkbox inside Select Option

...solute. To add the functionality we specify a JavaScript function that is called when the user clicks on the div that contains our select element (<div class="selectBox" onclick="showCheckboxes()">). We also create div that contains our checkboxes and style it using CSS. The above mentioned ...
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When should I use UNSIGNED and SIGNED INT in MySQL?

... Basically with UNSIGNED, you're giving yourself twice as much space for the integer since you explicitly specify you don't need negative numbers (usually because values you store will never be negative). ...
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“used as value” in function call

What's the proper way of calling functions when evaluating their values in conditional statements? 1 Answer ...
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How can one use multi threading in PHP applications

... concurrent programming is possible by using HTTP requests as asynchronous calls. With the curl's timeout setting set to 1 and using the same session_id for the processes you want to be associated with each other, you can communicate with session variables as in my example below. With this method y...