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How does Access-Control-Allow-Origin header work?
...ss-Control-Allow-Origin header opens a door for cross-origin access by specific requesting origins.
For each resource/page that Site B wants to make accessible to Site A, Site B should serve its pages with the response header:
Access-Control-Allow-Origin: http://siteA.com
Modern browsers will no...
Difference between C++03 throw() specifier C++11 noexcept
Is there any difference between throw() and noexcept other than being checked at runtime and compile time, respectively?
...
HTTP GET Request in Node.js Express
...so just return it
console.log(`onResult: (${statusCode})\n\n${JSON.stringify(result)}`);
res.statusCode = statusCode;
res.send(result);
});
UPDATE
If you're looking for async/await (linear, no callback), promises, compile time support and intellisense, we created a lightweight HTTP and RE...
sed beginner: changing all occurrences in a folder
...d file.
Notes:
The -i argument for sed command is a GNU extension, so, if you are running this command with the BSD's sed you will need to redirect the output to a new file then rename it.
The find utility does not implement the -exec argument in old UNIX boxes, so, you will need to use a | xarg...
Visual Studio: ContextSwitchDeadlock
... necessarily mean your code has an issue, just that there is a potential. If you go to Debug > Exceptions in the menu and expand the Managed Debugging Assistants, you will find ContextSwitchDeadlock is enabled. If you disable this, VS will no longer warn you when items are taking a long time to...
JavaScript style for optional callbacks
... occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
...
How to do case insensitive search in Vim
...
Also, \c can appear anywhere in the pattern, so if you type a pattern and then decide you wanted a case-insensitive search, just add a \c at the end.
– Alok Singhal
Feb 18 '10 at 9:20
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Find index of a value in an array
...t;/param>
///<returns>The index of the first matching item, or -1 if no items match.</returns>
public static int FindIndex<T>(this IEnumerable<T> items, Func<T, bool> predicate) {
if (items == null) throw new ArgumentNullException("items");
if (predicate == n...
How to convert a Binary String to a base 10 integer in Java
...
You need to specify the radix. There's an overload of Integer#parseInt() which allows you to.
int foo = Integer.parseInt("1001", 2);
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Initialize class fields in constructor or at declaration?
...declaration (null, false, 0, 0.0…).
Prefer initialization in declaration if you don't have a constructor parameter that changes the value of the field.
If the value of the field changes because of a constructor parameter put the initialization in the constructors.
Be consistent in your practice (t...