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JQuery to check for duplicate ids in a DOM

...contrast to traditional ASP.NET you're a lot more responsible for creating all the ids in your generated page. ASP.NET would give you nasty, but unique ids. ...
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How to remove trailing whitespaces with sed?

... hm. its also buggy in the sense that it will remove all trailing "t"s :) – Good Person Aug 1 '14 at 2:30 2 ...
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Append integer to beginning of list in Python [duplicate]

...original list? It could be an argument to a function for instance and the caller doesn't expect the list to be modified and it would introduce an error into the program to do so. – BlackJack Oct 19 '16 at 12:50 ...
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What is NODE_ENV and how to use it in Express?

...ment variable and do different things based on the value. NODE_ENV specifically is used (by convention) to state whether a particular environment is a production or a development environment. A common use-case is running additional debugging or logging code if running in a development environment. A...
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Is there a reason that we cannot iterate on “reverse Range” in ruby?

...its start and end, not by its contents. "Iterating" over a range doesn't really make sense in a general case. Consider, for example, how you would "iterate" over the range produced by two dates. Would you iterate by day? by month? by year? by week? It's not well-defined. IMO, the fact that it's allo...
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How to change plot background color?

...he stateful API (if you're doing anything more than a few lines, and especially if you have multiple plots, the object-oriented methods above make life easier because you can refer to specific figures, plot on certain axes, and customize either) plt.plot(...) ax = plt.gca() Then you can use set_...
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Batch: Remove file extension

... In case the file your variable holds doesn't actually exist the FOR approach won't work. One trick you could use, if you know the length of the extension, is taking a substring: %var:~0,-4% the -4 means that the last 4 digits (presumably .ext) will be truncated. ...
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Eloquent Collection: Counting and Detect Empty

...port\Collection is always returned, even when there are no results. Essentially what you're checking is $a = new stdClass; if ($a) { ... } which will always return true. To determine if there are any results you can do any of the following: if ($result->first()) { } if (!$result->isEmpty())...
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What's the difference between including files with JSP include directive, JSP include action and usi

...ribute to the current page at translation time. The directive was originally intended for static layout templates, like HTML headers. 2) The <jsp:include> standard action: <jsp:include page="header.jsp" /> Dynamic: adds the content from the value of the page attribute to...
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What is a Y-combinator? [closed]

...m the “functional” side of things. Most programmers don't know much at all about combinators, if they've even heard about them. ...