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When is each sorting algorithm used? [closed]

...al keys. Recommendations: Quick sort: When you don't need a stable sort and average case performance matters more than worst case performance. A quick sort is O(N log N) on average, O(N^2) in the worst case. A good implementation uses O(log N) auxiliary storage in the form of stack space for re...
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Is there a list of screen resolutions for all Android based phones and tablets? [closed]

If not, is there a list of screen resolutions for the most popular Android phones and tablets. 7 Answers ...
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Adjust list style image position?

...he actual content within the list item. Using a combination of background and padding styles can create something that looks similar e.g. li { background: url(images/bullet.gif) no-repeat left top; /* <-- change `left` & `top` too for extra control */ padding: 3px 0px 3px 10px; /* res...
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Can a class extend both a class and implement an Interface

Can a class extend both an interface and another class in PHP? Basically I want to do this: 3 Answers ...
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How do you get centered content using Twitter Bootstrap?

I'm trying to follow a very basic example. Using the starter page and the grid system , I was hoping the following: 23 An...
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How do I fetch lines before/after the grep result in bash?

... You can use the -B and -A to print lines before and after the match. grep -i -B 10 'error' data Will print the 10 lines before the match, including the matching line itself. ...
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Using sections in Editor/Display templates

...n one section; just before the closing body tag in my master layout page and just wondering the best to go about it, MVC style. ...
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JavaScript, Node.js: is Array.forEach asynchronous?

...k at the specification of the algorithm. However a maybe easier to understand implementation is given on MDN: if (!Array.prototype.forEach) { Array.prototype.forEach = function(fun /*, thisp */) { "use strict"; if (this === void 0 || this === null) throw new TypeError(); va...
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How do I check for null values in JavaScript?

... !user){ Which will check for empty strings (""), null, undefined, false and the numbers 0 and NaN Please note that if you are specifically checking for numbers it is a common mistake to miss 0 with this method, and num !== 0 is preferred (or num !== -1 or ~num (hacky code that also checks agains...
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Converting ISO 8601-compliant String to java.util.Date

...Unfortunately, the time zone formats available to SimpleDateFormat (Java 6 and earlier) are not ISO 8601 compliant. SimpleDateFormat understands time zone strings like "GMT+01:00" or "+0100", the latter according to RFC # 822. Even if Java 7 added support for time zone descriptors according to ISO ...