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What's the point of map in Haskell, when there is fmap?
...rs of Haskell feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language?
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Linux command (like cat) to read a specified quantity of characters
Is there a command like cat in linux which can return a specified quantity of characters from a file?
9 Answers
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How can I get form data with JavaScript/jQuery?
Is there a simple, one-line way to get the data of a form as it would be if it was to be submitted in the classic HTML-only way?
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Explain ExtJS 4 event handling
...lement interface. For the purpose of assigning event handlers, Element.addListener and Element.on (these are equivalent) were created. So, for example, if we have html:
<div id="test_node"></div>
and we want add click event handler.
Let's retrieve Element:
var el = Ext.get('test_node...
JavaScript: Class.method vs. Class.prototype.method
What is the difference between the following two declarations?
5 Answers
5
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jQuery: click function exclude children.
... div to be "clickable" but if a user clicks on a child element, the script is not called.
6 Answers
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How to install an APK file on an Android phone?
...ne.
Close the emulator window if it’s already open. As long as the phone is plugged in, Eclipse will load and run applications on the phone instead. You need to right-click the project and select Run As > Android Application.
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How to import a module given the full path?
...its full path? Note that the file can be anywhere in the filesystem, as it is a configuration option.
31 Answers
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What is the difference between single and double quotes in SQL?
What is the difference between single quotes and double quotes in SQL?
6 Answers
6
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Does MongoDB's $in clause guarantee order
... order or by the selected index order as shown.
If you need to preserve this order, then you basically have two options.
So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in to the $in as [ 4, 2, 8 ].
Approach using Aggregate
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