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Can Powershell Run Commands in Parallel?
... Alternatively, it's pretty easy to invoke a separate script file. Just use Start-Job -FilePath script.ps1 -ArgumentList $_
– Chad Zawistowski
Jun 16 '16 at 22:54
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How does lock work exactly?
...e to sleep. If you have some heavy calculations or long lasting code (e.g. file upload) in a lock it results in a huge performance loss.
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Should MySQL have its timezone set to UTC?
...n tables
in the mysql database have been created and populated.
in the file "my.cnf"
default_time_zone='+00:00'
or
timezone='UTC'
@@global.time_zone variable
To see what value they are set to
SELECT @@global.time_zone;
To set a value for it use either one:
SET GLOBAL time_zone = '+8:0...
Generating random numbers in Objective-C
...min + arc4random_uniform(max - min + 1));
}
If I end up using it in many files I usually declare a macro as
#define RAND_FROM_TO(min, max) (min + arc4random_uniform(max - min + 1))
E.g.
NSInteger myInteger = RAND_FROM_TO(0, 74) // 0, 1, 2,..., 73, 74
Note: Only for iOS 4.3/OS X v10.7 (Lion...
Debug.Assert vs Exception Throwing
... in production code by using Trace.Assert. You can even use the app.config file to re-direct production assertions to a text file rather than being rude to the end-user.
– HTTP 410
Nov 23 '11 at 14:55
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What is a NullReferenceException, and how do I fix it?
...context can be set for a project using the Nullable element in your csproj file. This element configures how the compiler interprets the nullability of types and what warnings are generated. Valid settings are:
enable: The nullable annotation context is enabled. The nullable warning context is enab...
Simple logical operators in Bash
...t on operators such as -n $variable to test if a variable is empty and -e $file to test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests...
JavaScript OOP in NodeJS: how?
... want less "hacky", you should use inheritance library or such.
Well in a file animal.js you would write:
var method = Animal.prototype;
function Animal(age) {
this._age = age;
}
method.getAge = function() {
return this._age;
};
module.exports = Animal;
To use it in other file:
var A...
Why does pylint object to single character variable names?
...r even though less than three characters. Find in or add to your pylintrc file, under the [FORMAT] header:
# Good variable names which should always be accepted, separated by a comma
good-names=i,j,k,ex,Run,_,pk,x,y
Here pk (for primary key), x, and y are variable names i've added.
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What is the difference between Linq to XML Descendants and Elements
...wer. Which one of these have the best performance with small to medium XML files. Thanks
2 Answers
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