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Proper use of 'yield return'

.../ completed the consumable list Consume consumable[0] // start consuming Consume consumable[1] Consume consumable[2] Consume consumable[3] Using yield, it becomes rearranged, sort of interleaved: //pseudo-assembly Produce consumable[0] Consume consumable[0] // im...
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Method to Add new or update existing item in Dictionary

...ns are equivalent. Regarding Dictionary<> vs. Hashtable: When you start Reflector, you see that the indexer setters of both classes call this.Insert(key, value, add: false); and the add parameter is responsible for throwing an exception, when inserting a duplicate key. So the behavior is th...
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How do I connect to a MySQL Database in Python?

...s a very basic example. You will have to look at the documentation. A good starting point. 3 - More advanced usage Once you know how it works, You may want to use an ORM to avoid writing SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python communit...
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How do I use JDK 7 on Mac OSX?

...lease has a few limitations, most notably the lack of support for Java Web Start and the Java Plugin for web browsers. That support is expected later this year. After installing, read the JDK for Mac ReadMe. Most importantly, if you want Java 7 to be the default, drag it to the top of the list in t...
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Find size of object instance in bytes in c#

... For managed objects the closer i got is an approximation. long start_mem = GC.GetTotalMemory(true); aclass[] array = new aclass[1000000]; for (int n = 0; n < 1000000; n++) array[n] = new aclass(); double used_mem_median = (GC.GetTotalMemory(false)...
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How to set or change the default Java (JDK) version on OS X?

...eneral use, and others for tests. But I don't want the system (e.g. when I start my IDE) to use the latest "early access" version I have for now. I want to control system's default, and that should be latest stable. The following approach works with Java 7 to 12 at least (early access at the time o...
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How to configure Visual Studio to use Beyond Compare

...or any other third party comparison software it will just pick this up and start using it. If not then just set that up (see here for further and likely more up to date help). The relevant info for setting up Visual Studio with Beyond Compare 4 is: Open Visual Studio. Select Options from the Tool...
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Should ol/ul be inside or outside?

...tem. A browser will handle it like so: <p>tetxtextextete <!-- Start of paragraph --> <ol> <!-- Start of ordered list. Paragraphs cannot contain lists. Insert </p> --> <li>first element</li></ol> <!-- A list item element. End of list --> </...
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'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine

... My situation, everything was working fine, then all the sudden it started getting this error. SO what could have happened to cause this? No code changed. – eetawil Jan 25 '16 at 14:21 ...
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What is Vim recording and how can it be disabled?

... You start recording by q<letter> and you can end it by typing q again. Recording is a really useful feature of Vim. It records everything you type. You can then replay it simply by typing @<letter>. Record search, m...