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Unix command to prepend text to a file
... Note that '\n' only works for GNU sed, not BSD (such as OSX, FreeBSD, etc.). To be more portable with those, see: stackoverflow.com/questions/1421478/…
– jwd
Jun 27 '17 at 23:19
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How to check if a stored procedure exists before creating it
...C, just like your example above but could be modified for tables, indexes, etc...):
IF (OBJECT_ID('MyProcedure') IS NOT NULL)
DROP PROCEDURE MyProcedure
GO
This is quick and elegant, but you need to make sure you have unique object names across all object types since it does not take that into ...
Creating a BLOB from a Base64 string in JavaScript
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An explanation would be in order. E.g., why does it have higher performance?
– Peter Mortensen
Apr 13 at 14:02
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Local file access with JavaScript
...ou can access the hardware, such as current CPU usage or total ram in use, etc.
You can create a windows, linux, or mac desktop application with it that doesn't require any installation.
http://nwjs.io
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Is an entity body allowed for an HTTP DELETE request?
...clients specific interpretations that exist (Jersey, Android test clients, etc.) and trying to justify the interpretation rather than attempting to be true to spec. Humans are fallible.
– Gibron
Sep 22 '17 at 17:25
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Clearing purchases from iOS in-app purchase sandbox for a test user
...r changes to app state for this purchase,
// register in keychain, etc.
break ;
//.. other cases
}
}
}
The question of having your app logic / take back the purchase is simple: if you're caching purchases in keychain, delete your keychain. If you're doing it some ot...
How to upload, display and save images using node.js and express [closed]
...be saved to uploaded directory relative to where the script is located.
In order to show the uploaded image, assuming you already have an HTML page containing an img element:
<img src="/image.png" />
you can define another route in your express app and use res.sendFile to serve the stored ima...
Conditional ng-include in angularjs
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tag vs tag
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How to make a class JSON serializable
...ives that have a direct JSON equivalent (e.g. dicts, lists, strings, ints, etc.). jsonpickle builds on top of these libraries and allows more complex data structures to be serialized to JSON. jsonpickle is highly configurable and extendable–allowing the user to choose the JSON backend and add addi...