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How to compute the sum and average of elements in an array?

...ements.length||1); Understand Javascript Array Reduce in 1 Minute http://www.airpair.com/javascript/javascript-array-reduce as gotofritz pointed out seems Array.reduce skips undefined values. so here is a fix: (function average(arr){var finalstate=arr.reduce(function(state,a) { state.sum+=a;sta...
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Mac OS X Terminal: Map option+delete to “backward delete word”

...k delete (kill) from cursor to end of line, and a bunch more. See http://www.bigsmoke.us/readline/shortcuts for a nice little reference table. share | improve this answer | ...
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Mocking python function based on input arguments

...>>> m(2) 3 >>> m.mock_calls [call(1), call(2)] http://www.voidspace.org.uk/python/mock/mock.html#calling share | improve this answer | follow ...
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MySQL LIKE IN()?

...s sense. If you want to learn more about regular expressions, I recommend www.regular-expressions.info as a good reference site. share | improve this answer | follow ...
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PyPy — How can it possibly beat CPython?

...d subset of Python (the language and not the CPython interpreter). - Refer https://pypy.readthedocs.org/en/latest/architecture.html for details. Q3. And what are the chances of a PyPyPy or PyPyPyPy beating their score? That would depend on the implementation of these hypothetical interpreters. If ...
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What is the maximum value for an int32?

.......86181221809936452346214748364710527835665425671614... source: http://www.subidiom.com/pi/ share answered Oct 26 '15 at 22:19 ...
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How to get image size (height & width) using JavaScript?

... function() { alert(this.width + 'x' + this.height); } img.src = 'http://www.google.com/intl/en_ALL/images/logo.gif'; This can be useful if the image is not a part of the markup. share | imp...
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#ifdef #ifndef in Java

... 1.2.5, it can also preprocess the Apple Objective C library. http://www.anarres.org/projects/jcpp/ share | improve this answer | follow | ...
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Markdown to create pages and table of contents?

... 3. [Third Example](#third-example) 4. [Fourth Example](#fourth-examplehttpwwwfourthexamplecom) ## Example ## Example2 ## Third Example ## [Fourth Example](http://www.fourthexample.com) share | ...
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Difference between SRC and HREF

...lse. For example: Absolute URL with anchor element: <a href="http://www.google.com/">Click here</a> Relative URL with link element: <link href="mystylesheet.css" type="text/css"> Courtesy share ...