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Why does Javascript's regex.exec() not always return the same value? [duplicate]

...substring of str specified by the regular expression's lastIndex property (test will also advance the lastIndex property). Since you are using the g flag, exec continues from the last matched string until it gets to the end (returns null), then starts over. Personally, I prefer to go the other ...
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How can you find and replace text in a file using the Windows command-line environment?

...shorter aliases, but this gives you something to Google for. (Get-Content test.txt) | ForEach-Object { $_ -replace "foo", "bar" } | Set-Content test2.txt share | improve this answer | ...
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URL rewriting with PHP

...all parameters are present, and if the type of parameters are correct. To test the url we need to have a set of rules, and the best tool for that is a regular expression. By using regular expressions we will kill two flies with one blow. Url, to pass this test must have all the required parameters ...
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Why does calling a function in the Node.js REPL with )( work?

Why is it possible to call function in JavaScript like this, tested with node.js: 3 Answers ...
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Which machine learning classifier to choose, in general? [closed]

...h step, you choose k-1 as your training data and the remaining one as your test data. Then you run model selection (the procedure I explained above) for each possible combination of those k folds. After finishing this, you will have k models, one for each combination of folds. After that, you test e...
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nginx showing blank PHP pages

...(and, of course, /etc/init.d/nginx restart) also fixed it for me on Debian Testing after an nginx upgrade on 10 September 2014. – severin Sep 10 '14 at 15:46 6 ...
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Text border using css (border around text)

...px #fff, -1px -1px 0 #fff, 1px -1px 0 #fff, -1px 1px 0 #fff; } <h1>test</h1> Alternatively, you could use text stroke, which only works in webkit: -webkit-text-stroke-width: 2px; -webkit-text-stroke-color: #fff; body { font-family: sans-serif; background: #222; ...
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What is the email subject length limit?

...ore any WSP. For example, the header field: Subject: This is a test can be represented as: Subject: This is a test The recommendation for no more than 78 characters in the subject header sounds reasonable. No one wants to scroll to see the entire subject line, a...
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How to prevent logback from outputting its own status at the start of every log when using a layout

...4j-api-1.6.1, logback core/classic 0.9.24). Simplest log configuration for testing is: 10 Answers ...
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How to create module-wide variables in Python? [duplicate]

..._ # add this line! if __DBNAME__ is None: # see notes below; explicit test for None __DBNAME__ = name else: raise RuntimeError("Database name has already been set.") By the way, for this example, the simple if not __DBNAME__ test is adequate, because any string value other...