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What is the most efficient way to concatenate N arrays?

...perator) can fail. For such arrays, using a loop is a better approach. See https://stackoverflow.com/a/17368101/96100 for details. share | improve this answer | follow ...
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Dynamically set local variable [duplicate]

... out in the comments there are exceptions, for example classes that define __slots__). Function locals can be optimised for speed because the compiler (usually) knows all the names in advance, so there isn't a dictionary until you call locals(). In the C implementation of Python locals() (called fr...
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How do you remove a Cookie in a Java Servlet

... are necessary to clear the cookie properly. private void eraseCookie(HttpServletRequest req, HttpServletResponse resp) { Cookie[] cookies = req.getCookies(); if (cookies != null) for (Cookie cookie : cookies) { cookie.setValue(""); cookie.setPath("/"); ...
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How do I check which version of NumPy I'm using?

...c Rodger: yeah, but your is more general to any module that cares to set a __version__. – Esteban Küber Oct 5 '09 at 14:13 57 ...
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How to ignore user's time zone and force Date() use specific time zone

...t can be formatted differently. What we need here is some formatting var _date = new Date(1270544790922); // outputs > "Tue Apr 06 2010 02:06:30 GMT-0700 (PDT)", for me _date.toLocaleString('fi-FI', { timeZone: 'Europe/Helsinki' }); // outputs > "6.4.2010 klo 12.06.30" _date.toLocaleString(...
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Do Java arrays have a maximum size?

... Going by this article http://en.wikipedia.org/wiki/Criticism_of_Java#Large_arrays: Java has been criticized for not supporting arrays of more than 231−1 (about 2.1 billion) elements. This is a limitation of the language; the Java Language Sp...
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How to implement has_many :through relationships with Mongoid and mongodb?

...a related collection via another it would still require multiple queries. https://github.com/mongoid/mongoid/issues/544 Normally if you have a many-many relationship in a RDBMS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For examp...
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How do popular apps authenticate user requests from their mobile app to their server?

...at will give you the ability to sync and authenticate all under the hood. http://developer.android.com/training/sync-adapters/creating-sync-adapter.html If you check the accounts under Settings on your device you'll see what I mean. ...
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Sort array of objects by single key with date value

...j = _.sortBy(arrObj,"updated_at"); _.sortBy() returns a new array refer http://underscorejs.org/#sortBy and lodash docs https://lodash.com/docs#sortBy share | improve this answer | ...
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Using javadoc for Python documentation [closed]

...gnizes reST field lists following certain conventions. This has probably become (or is becoming) the most popular way to do it. Your example could look as follows: """Replaces template placeholder with values. :param timestamp: formatted date to display :param priority: priority number :param pri...