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Why does z-index not work?
...re flex items or grid items can use z-index even when position is static.
From the specs:
4.3. Flex Item Z-Ordering
Flex items paint exactly the same as inline blocks, except that order-modified document order is used in place of raw
document order, and z-index values other than auto cr...
PHP: How to remove all non printable characters in a string?
... you just want the 7 bit printable ASCII chars, you can rip out everything from 0-31 and 127-255 with this:
$string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string);
It matches anything in range 0-31, 127-255 and removes it.
8 bit extended ASCII?
You fell into a Hot Tub Time Machine, and ...
Is the order of iterating through std::map known (and guaranteed by the standard)?
...d according to the keys. So, let's say the keys are integers. If I iterate from std::map::begin() to std::map::end() using a for , does the standard guarantee that I'll iterate consequently through the elements with keys, sorted in ascending order?
...
How can I echo a newline in a batch file?
How can you you insert a newline from your batch file output?
18 Answers
18
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Is it feasible to compile Python to machine code?
...
Try ShedSkin Python-to-C++ compiler, but it is far from perfect. Also there is Psyco - Python JIT if only speedup is needed. But IMHO this is not worth the effort. For speed-critical parts of code best solution would be to write them as C/C++ extensions.
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Performance of Arrays vs. Lists
...s system will create new one bigger array and will need time to copy items from old one.
– Andrew
Sep 18 '19 at 10:21
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Why '&&' and not '&'?
... false and the evaluation of the rest (op.CanExecute()) is skipped.
Apart from this, technically, they are different, too:
&& and || can only be used on bool whereas & and | can be used on any integral type (bool, int, long, sbyte, ...), because they are bitwise operators. & is the ...
how do I initialize a float to its max/min value?
...reach an extreme. To find the smallest non-zero value, we can subtract one from each for the comparison. Any zero values will "wrap around" to the largest possible value for the type, but the relationship between other values will be retained. After we're done, we obviously add one back to the value...
Calculating sum of repeated elements in AngularJS ng-repeat
...mal list. The first thing to create a new filter for the sum of all values from the list, and also given solution for a sum of the total quantity.
In details code check it fiddler link.
angular.module("sampleApp", [])
.filter('sumOfValue', function () {
return function (data, key) {...
What are the differences between .so and .dylib on osx?
...namically load libraries. A set of dyld APIs (e.g. NSCreateObjectFileImageFromFile, NSLinkModule) were introduced with 10.1 to load and unload bundles, but they didn't work for dylibs. A dlopen compatibility library that worked with bundles was added in 10.3; in 10.4, dlopen was rewritten to be a ...