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Converting Long to Date in Java returns 1970
...nt of whole seconds since the same epoch reference of 1970-01-01T00:00Z.
Know Your Data
People use various precisions in tracking time as a number since an epoch. So when you obtain some numbers to be interpreted as a count since an epoch, you must determine:
What epoch?Many epochs dates have been...
HTML 5 Favicon - Support?
...con" considered harmful by Mathias Bynens
Everything you always wanted to know about touch icons by Mathias Bynens
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Dynamically load a JavaScript file
...rary.js", type: "text/javascript"});
The problem here is that we do not know when the external script file is fully loaded.
We often want our dependant code on the very next line and like to write something like:
if (iNeedSomeMore) {
Script.load("myBigCodeLibrary.js"); // includes code for ...
Redis strings vs Redis hashes to represent JSON: efficiency?
...:
If you use just single fields on most of your accesses.
If you always know which fields are available
P.S.: As a rule of the thumb, go for the option which requires fewer queries on most of your use cases.
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...become complicated to arrange in dealing with multiple screen sizes. For now, we recommend three approaches:
Use fixed sizing for these apps, i.e., don’t use responsive design here.
Use responsive sizing, but set the size of the canvas to be a fixed number of pixels. In other words, while th...
“Diff” an image using ImageMagick
...al image. Someone has written on an exact duplicate of the original image. Now, I need to compare the original to the written on image and extract just the writing in image format.
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Make Iframe to fit 100% of container's remaining height
... I wasn't wrong already when I posted this, but this certainly is outdated now. Today you can do this in your stylesheet: html, body { height: 100% } and it will actually stretch to the whole of your viewport. Even with a DOCTYPE. min-height: 100% could also be useful, depending on your situation.
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You can't specify target table for update in FROM clause
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@grisson Thanks for the clarification. Now I get why my IN clause doesn't work - I was targeting the same table.
– Anthony
Sep 4 '12 at 2:43
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Is there a software-engineering methodology for functional programming? [closed]
... captured as higher-order functions. For example, the Visitor pattern is known in the functional world as a "fold" (or if you are a pointy-headed theorist, a "catamorphism"). In functional languages, data types are mostly trees or tuples, and every tree type has a natural catamorphism associated w...
Unit Testing C Code [closed]
...ode on our embedded systems. For the most part check was a good choice but now we are working on systems running on uClinux and since check requires fork it doesn't work on those systems. :/
– David Holm
Oct 15 '08 at 12:43
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