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Is it possible for a computer to “learn” a regular expression by user-provided examples?

... Yes, it's certainly "possible"; Here's the pseudo-code: string MakeRegexFromExamples(<listOfPosExamples>, <listOfNegExamples>) { if HasIntersection(<listOfPosExamples>, <listOfNegExamples>) return <IntersectionError> string regex = ""; ...
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What is the use of interface constants?

.... Use of Enum Constants is actually Horrible Practice. It requires writing extra code to map parameter to value. The fact that the founders of Java did not provide for parameter-value mapping without your writing that mapping code demonstrates Enum Constants are just as unintended use of Java langua...
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In where shall I use isset() and !empty()

I read somewhere that the isset() function treats an empty string as TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form. ...
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GridLayout and Row/Column Span Woe

... It feels pretty hacky, but I managed to get the correct look by adding an extra column and row beyond what is needed. Then I filled the extra column with a Space in each row defining a height and filled the extra row with a Space in each col defining a width. For extra flexibility, I imagine these ...
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Are “while(true)” loops so bad? [closed]

... BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String strLine; while ((strLine = br.readLine()) != null) { // do something with the line } And the usual C++ convention for reading input is: #include <iostream> #include <string> std::string data; while(st...
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Why is parenthesis in print voluntary in Python 2.7?

..., expr2, ... exprn (Each expression in turn is evaluated, converted to a string and displayed with a space between them.) But remember that putting parentheses around an expression is still the same expression. So you can also write this as: print (expr1), (expr2), ... (expr3) This has nothin...
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Flexbox Not Centering Vertically in IE

... 2019, the best solution by far is the one by @sergey-fedirko requiring no extra HTML elements and no hard heights ;) This one: stackoverflow.com/a/54796082/134120 – AsGoodAsItGets Mar 12 '19 at 12:19 ...
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Unable to Cast from Parent Class to Child Class

... and adapt the non-existing data. Like converting claws to nails, chasing string to chasing ball, etc... – TamusJRoyce Mar 1 '12 at 15:22 ...
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How to format numbers? [duplicate]

... If you want to use built-in code, you can use toLocaleString() with minimumFractionDigits. Browser compatibility for the extended options on toLocaleString() was limited when I first wrote this answer, but the current status looks good. var n = 100000; var value = n.toLocale...
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How to update PATH variable permanently from Windows command line?

...rom the command line ( cmd.exe ) and then execute echo %PATH% I see this string added to the PATH. If I close and open the command line, that new string is not in PATH. ...