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What is the best way to do a substring in a batch file?

...ion) of the currently running batch file (unless executed in a subroutine called by call). The complete list of such “special” substitutions for path names can be found with help for, at the very end of the help: In addition, substitution of FOR variable references has been enhanced. You...
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ALTER DATABASE failed because a lock could not be placed on database

...or the sessions that are connected to the database. Try your script after all connections to the database are removed. Unfortunately, I don't have a reason why you're seeing the problem, but here is a link that shows that the problem has occurred elsewhere. http://www.geakeit.co.uk/2010/12/11/sql...
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JavaScript module pattern with example [closed]

... Your first example (function() { /* Your code goes here */}()); is actually a IIFE (Immediately Invoking Function Expression), ok it's anonymous coz it has no name so you may even want to call it an IIAFE (Immediately Invoking Anonymous Function Expression) see more on IIFE on stackoverflow.com/...
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How to make a div fill a remaining horizontal space?

... This solution actually has a problem. Try removing the color from the LEFT element. You'll notice the color from RIGHT element is actually hiding under it. The content seems to go to the right place, but the RIGHT div itself isn't. ...
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How can I process each letter of text using Javascript?

... Note that both the spread operator (first example) and the split call (last example) will create a new array. This won't usually be a problem, but could be costly for large strings or frequent uses. – Randolpho Feb 21 '19 at 16:02 ...
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json_encode sparse PHP array as JSON array, not JSON object

...at is, if its keys are 0, 1, 2, 3, ... You can reindex your array sequentially using the array_values function to get the behaviour you want. For example, the code below works successfully in your use case: echo json_encode(array_values($input)). ...
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What does threadsafe mean?

... safe" and so I ended up writing a delegate (sample from MSDN helped) and calling it instead. 11 Answers ...
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Resizing an image in an HTML5 canvas

... So what do you do if all the browsers (actually, Chrome 5 gave me quite good one) won't give you good enough resampling quality? You implement them yourself then! Oh come on, we're entering the new age of Web 3.0, HTML5 compliant browsers, super ...
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Getting request payload from POST request in Java servlet

...eem to get the contents of the request payload. In chrome Developer Tools, all the content is in the Request Payload section in the headers tab, and the content is there, and I know that the POST is being received by the doPost method, but it just comes up blank. ...
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What are the differences between a clustered and a non-clustered index?

...ex Only one per table Faster to read than non clustered as data is physically stored in index order Non Clustered Index Can be used many times per table Quicker for insert and update operations than a clustered index Both types of index will improve performance when select data with fields t...