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Why wasn't PyPy included in standard Python?
...eated running of compiled code that it becomes faster overall. This means startup times can be higher, and therefore PyPy isn't necessarily as efficient for running glue code or trivial scripts.
PyPy and CPython behavior is not identical in all respects, especially when it comes to "implementation ...
A variable modified inside a while loop is not remembered
...e=${arr[i]};
...
}
Variable $lines can be converted to an array without starting a new sub-shell. The characters \ and n has to be converted to some character (e.g. a real new line character) and use the IFS (Internal Field Separator) variable to split the string into array elements. This can be ...
Entity Framework rollback and remove bad migration
...ll migrations applied after the one specified will be down-graded in order starting with the latest migration applied first.
Step 2: Delete your migration from the project
remove-migration name_of_bad_migration
If the remove-migration command is not available in your version of Entity Framework, de...
What is non-blocking or asynchronous I/O in Node.js?
...
var startTime = new Date().getTime();
var getEndTime = () => {
var tempEndTime = new Date().getTime();
var second = (tempEndTime - startTime)/1000
return `took ${second} sec...to finish\n`
}
console.log('1: start ...
Difference between using Throwable and Exception in a try catch
...er get notified that an OOM happened, leaving you wondering why the server started behaving "funny"
– Bruno Grieder
Sep 10 '14 at 9:24
4
...
VS2012 return to a normal TFS checkin window?
...r own tool (with hidden console window itself), which will do both things: start the tf.exe and hide its console window.
– Borislav Ivanov
Mar 16 '13 at 10:05
...
Copy a stream to avoid “stream has already been operated upon or closed”
...> stream = Stream.of("d2", "a2", "b1", "b3", "c")
.filter(s -> s.startsWith("a"));
stream.anyMatch(s -> true); // ok
stream.noneMatch(s -> true); // exception
Calling `noneMatch` after `anyMatch` on the same stream results in the following exception:
java.lang.IllegalStateExcep...
Error in Swift class: Property not initialized at super.init call
...lear, specific sequence of operations that are done in initializers. Let's start with some basic examples and work our way up to a general case.
Let's take an object A. We'll define it as follows.
class A {
var x: Int
init(x: Int) {
self.x = x
}
}
Notice that A does not have ...
Convert a RGB Color Value to a Hexadecimal String
...color has an alpha value < 16 (i.e. its hexadecimal ARGB representation starts with 0).
– ARRG
Sep 4 '14 at 15:34
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Difference between Visual Basic 6.0 and VBA
...ven released a new version (VBA7) with a new VM (now just called VBA7.dll) starting with MS Office 2010. The only major difference is that VBA7 has both a 32- and 64-bit version and has a few enhancements to handle the differences between the two, specifically with regards to external API invocation...