大约有 46,000 项符合查询结果（耗时：0.0872秒） [XML]
Does a finally block run even if you throw a new Exception?
In this code will someVar be set even if the catch block is executed and the second Exception is thrown?
6 Answers
...
Rails: Adding an index after adding column
...
rails generate migration AddUserRefToProducts user:references
This command will generate the following migration:
class AddUserRefToProducts < ActiveRecord::Migration
def change
add_reference :user, :product, index: true
end
end
After running rake db:migrate both a user_id column a...
Are parallel calls to send/recv on the same socket valid?
...send/recv then yes, you can call them simultaneously from multiple threads and things will work.
This doesn't necessarily mean that they'll be executed in parallel -- in the case of multiple sends, the second will likely block until the first completes. You probably won't notice this much, as a se...
Detect if called through require or directly by command line
...hich I don't have control over) that does this, but I need to require() it and have it act as though it was called directly. Basically, I need to fool something that uses that test into thinking it was called directly.
– Kevin
Nov 17 '15 at 22:17
...
How to move columns in a MySQL table?
...the structure view of a table.
Check to select the column you want to move and click the change action at the bottom of the column list.
You can then change all of the column properties and you'll find the 'move column' function at the far right of the screen.
Of course this is all just building th...
how to specify local modules as npm package dependencies
...ays to update the dependent project with
Update the version of mymodule and then use npm update: As you can see above, the package.json "dependencies" entry does not include a version specifier as you would see for normal dependencies. Instead, for local dependencies, npm update just tries to mak...
ASP.NET: This method cannot be called during the application's pre-start initialization stage
...
Can you please expand on that a little? Where in the web.config? What do the keys do? I'm having trouble finding online documentation of those keys.
– Kennet Belenky
Jan 19 '11 at 19:54
...
Custom sort function in ng-repeat
...on. For example, if you would like to compare cards based on a sum of opt1 and opt2 (I'm making this up, the point is that you can have any arbitrary function) you would write in your controller:
$scope.myValueFunction = function(card) {
return card.values.opt1 + card.values.opt2;
};
and then,...
How to add a second css class with a conditional value in razor MVC 4
...
I believe that there can still be and valid logic on views. But for this kind of things I agree with @BigMike, it is better placed on the model. Having said that the problem can be solved in three ways:
Your answer (assuming this works, I haven't tried this)...
Instance attribute attribute_name defined outside __init__
...
@MericOzcan either setting a bunch of attributes to None and then setting them later in a parse_args function OR returning a short tuple from parse_args is OK. ideally, parse_args should be testable without needing a wizard instance.
– Erik Aronesty
...