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When do we need to set ProcessStartInfo.UseShellExecute to True?
...en a specified program or file - it is roughly equivalnt to typing the command to be executed into the run dialog and clicking OK, which means that it can be used to (for example):
Open .html files or web using the default browser without needing to know what that browser is,
Open a word document w...
running Rails console in production
...evelopment or test (value is development by default)
Adding the option --sandbox makes it so that any changes you make to your database in the console will be rolled back after you exit
If this isn't working for you, you may need to try
bundle exec rails console production
If you are actually t...
Is PHP's count() function O(1) or O(n) for arrays?
...unt the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved?
3 Answers
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How do I change the formatting of numbers on an axis with ggplot?
I'm using R and ggplot to draw a scatterplot of some data, all is fine except that the numbers on the y-axis are coming out with computer style exponent formatting, i.e. 4e+05, 5e+05, etc. This is obviously unacceptable, so I want to get it to display them as 500,000, 400,000, and so on. Getting a p...
How to debug Visual Studio extensions
I'm just writing a VSIX extension for Visual Studio 2010 and can't figure out how to debug it.
4 Answers
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Difference between document.addEventListener and window.addEventListener?
...
The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested...
Are nullable types reference types?
...Guide):
Nullable types are instances of the System.Nullable struct.
and
Nullable types represent value-type variables that can be assigned the value of null. You cannot create a nullable type based on a reference type. (Reference types already support the null value.)
So, no they're not...
Insert image after each list item
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And also some problems with this in firefox
– Johnny_D
Sep 28 '13 at 23:22
204
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Is it a good idea to index datetime field in mysql?
...n/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 30 DAY) and you have no other index in the condition, MySQL will...
Why does Typescript use the keyword “export” to make classes and interfaces public?
...meClass = SomeClass;.
So conceptually, visibility as controlled by public and private is just for tooling, whereas the export keyword changes the output.
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