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Is the order of iterating through std::map known (and guaranteed by the standard)?
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180
Yes, that's guaranteed. Moreover, *begin() gives you the smallest and *rbegin() the largest elem...
What's the difference between “declare class” and “interface” in TypeScript
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Ryan CavanaughRyan Cavanaugh
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Insert/Update Many to Many Entity Framework . How do I do it?
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Nov 23 '10 at 10:30
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How do I log ALL exceptions globally for a C# MVC4 WebAPI app?
...ttpStatusCode.Unauthorized:
Response.Redirect("/Http/Error401");
break;
// TODO: don't forget that here you have many other status codes to test
// and handle in addition to 401.
}
else
{
// It was not an H...
(Built-in) way in JavaScript to check if a string is a valid number
...xamples
isNaN(123) // false
isNaN('123') // false
isNaN('1e10000') // false (This translates to Infinity, which is a number)
isNaN('foo') // true
isNaN('10px') // true
Of course, you can negate this if you need to. For example, to implement the IsNumeric example you gav...
What method in the String class returns only the first N characters?
...f (string.IsNullOrEmpty(str))
return str;
return str.Substring(0, Math.Min(str.Length, maxLength));
}
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Cleanest way to write retry logic?
...ar exceptions = new List<Exception>();
for (int attempted = 0; attempted < maxAttemptCount; attempted++)
{
try
{
if (attempted > 0)
{
Thread.Sleep(retryInterval);
}
...
Templated check for the existence of a class member function?
...e:
#include <iostream>
struct Hello
{
int helloworld() { return 0; }
};
struct Generic {};
// SFINAE test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
template <typename C> static one test( decltype(&C::hellow...
How do I get the value of text input field using JavaScript?
... [whole_number] to get the desired occurrence. For the first element, use [0],
for the second one use 1, and so on...
Method 2:
Use
document.getElementsByClassName('class_name')[whole_number].value which returns a Live HTMLCollection
For example, document.getElementsByClassName("searc...
How to use random in BATCH script?
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120
%RANDOM% gives you a random number between 0 and 32767.
Using an expression like SET /A test=%R...