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R and version control for the solo data analyst
...d on the same dataset; you are preparing a report that is updated monthly, etc)
As a soloist, I don't fork that much either. However, the time I have saved by having the option to rewind has single-handedly paid back my investment in learning a version control system many, many times. You say...
php is null or empty?
...rovide an example of using simple comparison instead of these NULL empty() etc.
– Naeem Ul Wahhab
Jan 24 '18 at 19:15
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NSInvocation for Dummies?
...So your first argument gets placed at index 2, second argument at index 3, etc...
– Dave
Jul 11 '10 at 20:47
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Remove DEFINER clause from MySQL Dumps
...corruption or partial content in situations where disk space is exhausted, etc."
– Chad
Jan 13 at 22:13
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String, StringBuffer, and StringBuilder
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.toString()
Or
String s = new StringBuilder(100).appe..... etc. ...
// The difference is a size of 100 will be allocated upfront as fuzzy lollipop points out.
StringBuffer ( the syntax is exactly as with StringBuilder, the effects differ )
About
StringBuffer vs. StringBuilder ...
How do I perform the SQL Join equivalent in MongoDB?
... is small. It is going to bring each book content to your client and then fetch each category, lending and authors one by one. The moment your books are in thousands, this would go really really slow. A better technique probably would be to use aggregation pipeline and output the merged data into a...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
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In order to prevent the "silently stop calling Startup.Configuration" side-effect, you can add a web.config appSettings key "owin:appStartup" that explicitly specifies the type to be used for OWIN startup, instead of relying on ...
Difference between Covariance & Contra-variance
...t deliver something more specific (an actual work-product). Either way the order of subtypes (LSP) is unbroken.
– karfus
Jul 31 '19 at 11:23
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How to retrieve the dimensions of a view?
...outChangeListener() can be used to avoid sub-classing.
One more thing, in order to get correct width of the view in View.onSizeChanged(), the layout_width should be set to match_parent, not wrap_content.
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angularJS: How to call child scope function in parent scope
...he caller scope is (I mean in $scope.$parent or in $scope.$parent.$parent, etc)? Ah, yes: pass a callback in params! :)
– user2173353
Jul 28 '14 at 11:23
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