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How to use the 'og' (Open Graph) meta tag for Facebook share
Facebook fetches all pictures from my site.
3 Answers
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Why are ToLookup and GroupBy different?
... I ever bother with GroupBy? Why should it exist?
What happens when you call ToLookup on an object representing a remote database table with a billion rows in it?
The billion rows are sent over the wire, and you build the lookup table locally.
What happens when you call GroupBy on such an object...
Rename a file in C#
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be really careful with this approach... if your destination directory and your source directory are the same, and the "newname" actually a case-sensitive version of "oldFileName", you will delete before you get a chance to move yo...
Sort Dictionary by keys
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this actually returns an array of [(String, [Int])] not a Dictionary
– scord
Feb 12 '16 at 16:27
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What is the use of the square brackets [] in sql statements?
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You may also define a column name called select but select select from mytable would throw an error so select [select] from mytable would make it a valid query. Whatever word becomes colourful in your SQL management studio, should be surrounded by brackets if ...
jQuery: find element by text
... Yes, please use the appraoch @RocketHazmat uses, say you have 5 elements all prefixed with 'Register Contract' and each has a number suffix. You'll end up selecting them all, when in reality you only want the element with text: 'Register Contract 26'.
– Riveascore
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How to open the Google Play Store directly from my Android application?
...lock here because an Exception will be thrown if the Play Store is not installed on the target device.
NOTE: any app can register as capable of handling the market://details?id=<appId> Uri, if you want to specifically target Google Play check the Berťák answer
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What is an uninterruptible process?
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An uninterruptible process is a process which happens to be in a system call (kernel function) that cannot be interrupted by a signal.
To understand what that means, you need to understand the concept of an interruptible system call. The classic example is read(). This is a system call that can t...
When is it acceptable to call GC.Collect?
The general advise is that you should not call GC.Collect from your code, but what are the exceptions to this rule?
24 An...
What is the difference between --save and --save-dev?
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This answer is frustratingly vague. Even a small example would go a long way to helping make this clearer.
– Choylton B. Higginbottom
Oct 31 '17 at 17:45
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