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Is it Linq or Lambda?
...those two syntaxes is purely syntactic. The second linq style using method calls is how it works under the hood. The first is meant to be more user friendly/easier and the compiler converts it to method calls behind the scenes. They should work the same for any given query though of course the compi...
How to set initial size of std::vector?
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@Cincinnatus: Because it has a call to reserve, which pre-allocates the memory size. In theory, setting the size could still be minutely faster, since it also avoids incrementing the current size every time you add an item. In reality, I doubt you could me...
What is an 'endpoint' in Flask?
...Werkzeug library) is to map URL paths to some logic that you will run (typically, the "view function"). Your basic view is defined like this:
@app.route('/greeting/<name>')
def give_greeting(name):
return 'Hello, {0}!'.format(name)
Note that the function you referred to (add_url_rule) a...
Unpacking array into separate variables in JavaScript
...and I've done it before. I just can't remember how, or what exactly it was called.
7 Answers
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How do I access the request object or any other variable in a form's clean() method?
... adding method parameters or instance variables is impossible. Think about callable argument to a query filter that needs access to request data. You can neither add a parameter to the call, nor is there any instance to reference.
– Ber
Jun 29 '09 at 14:18
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Struggling trying to get cookie out of response with HttpClient in .net 4.5
...(uri, cookie). After the request is made the cookie container will automatically be populated with all the cookies from the response. You can then call GetCookies() to retreive them.
CookieContainer cookies = new CookieContainer();
HttpClientHandler handler = new HttpClientHandler();
handler.Cookie...
Android: “Path for project must have only one segment”
... thought that if I right-click the project, its name will be taken automatically.
Anyway, it works now. Yeah! :)
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jQuery: Performing synchronous AJAX requests
...y stuck on this. I know about the pros and cons of using synchronous ajax calls, but here it will be required.
4 Answers
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How do you create optional arguments in php?
...gument must be a constant expression. It can't be a variable or a function call.
If you need this functionality however:
function foo($foo, $bar = false)
{
if(!$bar)
{
$bar = $foo;
}
}
Assuming $bar isn't expected to be a boolean of course.
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Rails 4: before_filter vs. before_action
... just syntax difference, in rails app there is CRUD, and seven actions basically by name index, new, create, show, update, edit, destroy.
Rails 4 make it developer friendly to change syntax before filter to before action.
before_action call method before the actions which we declare, like
before_...