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difference between width auto and width 100 percent
...containing block plus any horizontal margin, padding and border.
So, next time you find yourself setting the width of a block level element to 100% to make it occupy all available width, consider if what you really want is setting it to auto.
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Pretty printing XML in Python
...o go from the core etree to pretty printing. While lxml is cool, there are times when I'd prefer to keep to the core if I can.
– Danny Staple
May 1 '12 at 16:05
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How can I reconcile detached HEAD with master/origin?
...understand how git works before you blindly run any commands. You can save time by not reading the big answer, but can lose more time if your work is lost.
– Yusufali2205
Mar 11 '19 at 16:15
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Creating a blocking Queue in .NET?
...od, but not in the Add method. What happens if one thread Adds at the same time as another thread Removes? Bad things.
Also consider that a method can return a second object that provides access to the first object's internal data - for example, GetEnumerator. Imagine one thread is going through th...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...instead of selling. A system that just bought S&P500 futures at random times between 1995 and 1999 (without any kind of GA nonsense going on) would have made tons of money, but we only know this in retrospect.
– MusiGenesis
Sep 11 '10 at 12:09
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Rank items in an array using Python/NumPy, without sorting array twice
...solution and it would seem obvious once I saw it. I did some testing with timeit, and this method is slightly slower for small arrays. On my machine they're equal when the array has 2,000 elements. At 20,000 elements, your method is about 25% faster.
– joshayers
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Peak memory usage of a linux/unix process
...sn't require you to start the process via another program like Valgrind or time, so you can use it for any process that's already running:
grep VmPeak /proc/$PID/status
(replace $PID with the PID of the process you're interested in)
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ViewBag, ViewData and TempData
...s that the life cycle of the object. TempData keep the information for the time of an HTTP Request. This mean only from one page to another. This also work with a 302/303 redirection because it’s in the same HTTP Request. Helps to maintain data when you move from one controller to other controller...
#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
...ENABLED in preprocessor and compiled tests. Example - Often, I want longer timeouts when debug is enabled, so using #if, I can write this
DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000);
... instead of ...
#ifdef DEBUG_MODE
DoSomethingSlowWithTimeout(5000);
#else
DoSomethingSlowWith...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... the fingers, so that we can rotate an image with correct directions. Each time the user touches the screen with two fingers, there is a line formed by two fingers. When the user rotates with two fingers, a new line will be formed and there is a angle between the previous line and the current line. ...