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How do you know when to use fold-left and when to use fold-right?

...esirable. – ephemient Sep 18 '09 at 20:42 Sorry, I thought I saw a "Haskell" tag on this question, but it's not there....
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How do I print a double value with full precision using cout?

... Is the really the right answer? When I manually use a high number, I can print out as many as 51 digits of approximated e, but with cout.precision(numeric_limits<double>::digits10 + 2); I only get 16.... – ...
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Find out how much memory is being used by an object in Python [duplicate]

...and internal structures related to object types and garbage collection. Finally, some python objects have non-obvious behaviors. For instance, lists reserve space for more objects than they have, most of the time; dicts are even more complicated since they can operate in different ways (they have a ...
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How do Python functions handle the types of the parameters that you pass in?

...object has a type, every object knows its type, it's impossible to accidentally or deliberately use an object of a type "as if" it was an object of a different type, and all elementary operations on the object are delegated to its type. This has nothing to do with names. A name in Python doesn't "...
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How to check null objects in jQuery

...em to have enough reputation to vote down the answer...) Wolf wrote: Calling length property on undefined or a null object will cause IE and webkit browsers to fail! Instead try this: // NOTE!! THE FOLLOWING IS WRONG; DO NOT USE! -- EleotleCram if($("#something") !== null){ // do ...
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Pick any kind of file via an Intent in Android

...for camera but for other files.. In my device I have ES File Explorer installed and This simply thing works in my case.. Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("file/*"); startActivityForResult(intent, PICKFILE_REQUEST_CODE); ...
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On delete cascade with doctrine2

...ple in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2. ...
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How to make ng-repeat filter out duplicate results

...sion of ui utils, you can just include ui.unique on its own. use bower install just for the module. – Learning stats by example Feb 11 '15 at 19:59 ...
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How can I open a link in a new window?

... 204 You can like: window.open('url', 'window name', 'window settings') jQuery: $('a#link_id')....
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What is the correct way to make a custom .NET Exception serializable?

More specifically, when the exception contains custom objects which may or may not themselves be serializable. 7 Answers ...