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count vs length vs size in a collection
...er of elements - check source/documentation.
Capacity() - used to specifically refer to allocated space in collection and not number of valid elements in it. If type has both "capacity" and "size" defined then "size" usually refers to number of actual elements.
I think the main point is down to hu...
Coroutine vs Continuation vs Generator
.... As @zvolkov mentioned, they're functions/objects that can be repeatedly called without returning, but when called will return (yield) a value and then suspend their execution. When they're called again, they will start up from where they last suspended execution and do their thing again.
A genera...
Boolean vs boolean in Java
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It should be noted the a Boolean actually has 3 states... true, false and null where a boolean has the logical 2 states (true and false)
– respectTheCode
Jun 6 '14 at 15:46
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CROSS JOIN vs INNER JOIN in SQL
...---------------------------------x
2. CROSS JOIN
Cross join selects the all the rows from the first table and all the rows from second table and shows as Cartesian product ie, with all possibilities
Consider we need to find all the teachers in the school and students irrespective of class teacher...
In MySQL, can I copy one row to insert into the same table?
...an existing row in the table) but I want to do this without having to list all the columns after the "select", because this table has too many columns.
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Get TFS to ignore my packages folder
...n't. Why? Who knows, the ways of Microsoft are strange and mysterious. Actually, I think it's part of the NuGet stuff I outline below, but if that ever gets fixed in the future and you want to keep the repositories.config file instead of letting VS regenerate it, you should be able to use this:
\pa...
PHP method chaining?
...g PHP 5 and I've heard of a new featured in the object-oriented approach, called 'method chaining'. What is it exactly? How do I implement it?
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Keyboard shortcuts are not active in Visual Studio with Resharper installed
...ave Visual Studio 2012 + Resharper 7.1.1000.900 + StyleCop 4.7.44 installed.
22 Answers
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Why dict.get(key) instead of dict[key]?
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It allows you to provide a default value if the key is missing:
dictionary.get("bogus", default_value)
returns default_value (whatever you choose it to be), whereas
dictionary["bogus"]
would raise a KeyError.
If omitted...
Biggest differences of Thrift vs Protocol Buffers?
...tter documentation/examples
Thrift has a builtin Set type
Protocol Buffers allow "extensions" - you can extend an external proto to add extra fields, while still allowing external code to operate on the values. There is no way to do this in Thrift
I find Protocol Buffers much easier to read
Basica...