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Sometimes adding a WCF Service Reference generates an empty reference.cs

... Generally I find that it's a code-gen issue and most of the time it's because I've got a type name conflict it couldn't resolve. If you right-click on your service reference and click configure and uncheck "Reuse Types in Referen...
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Simple Digit Recognition OCR in OpenCV-Python

...stand some of the features at end) 2) Since I knew, without understanding all those features, it is difficult to do that method. I tried some other papers, but all were a little difficult for a beginner. So I just decided to take all the pixel values as my features. (I was not worried about accura...
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release Selenium chromedriver.exe from memory

... per the Selenium API, you really should call browser.quit() as this method will close all windows and kills the process. You should still use browser.quit(). However: At my workplace, we've noticed a huge problem when trying to execute chromedriver...
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Associative arrays in Shell scripts

....0 (available now on most major distros, though not on OS X unless you install it yourself), ksh, and zsh: declare -A newmap newmap[name]="Irfan Zulfiqar" newmap[designation]=SSE newmap[company]="My Own Company" echo ${newmap[company]} echo ${newmap[name]} Depending on the shell, you may need to...
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When to use RDLC over RDL reports?

...things to think about both things: I. RDL reports are HOSTED reports generally. This means you need to implement SSRS Server. They are a built in extension of Visual Studio from SQL Server for the reporting language. When you install SSRS you should have an add on called 'Business Intelligence D...
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How and when to use ‘async’ and ‘await’

...he result of LongRunningOperationAsync can be done here //and now we call await on the task int result = await longRunningTask; //use the result Console.WriteLine(result); } public async Task<int> LongRunningOperationAsync() // assume we return an int from this long running...
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OO Design in Rails: Where to put stuff

I'm really enjoying Rails (even though I'm generally RESTless), and I enjoy Ruby being very OO. Still, the tendency to make huge ActiveRecord subclasses and huge controllers is quite natural (even if you do use a controller per resource). If you were to create deeper object worlds, where would you p...
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Fixed Table Cell Width

... You could try using the <col> tag manage table styling for all rows but you will need to set the table-layout:fixed style on the <table> or the tables css class and set the overflow style for the cells https://developer.mozilla.org/en-US/docs/Web/HTML/Element/col <table cl...
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Why use a READ UNCOMMITTED isolation level?

... This isolation level allows dirty reads. One transaction may see uncommitted changes made by some other transaction. To maintain the highest level of isolation, a DBMS usually acquires locks on data, which may result in a loss of concurrency and...
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node.js fs.readdir recursive directory search

... search using fs.readdir? I realise that we could introduce recursion and call the read directory function with the next directory to read, but am a little worried about it not being async... ...