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How do I undo the most recent local commits in Git?
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Undoing a commit is a little scary if you don't know how it works. But it's actually amazingly easy if you do understand.
Say you have this, where C is your HEAD and (F) is the state of your files.
(F)
A-B-C
↑
master
You want to nuke commit C and never see i...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
.... Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
(Build Settings -> Swift Compiler ...
What are the alternatives now that the Google web search API has been deprecated? [closed]
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Yes, Google Custom Search has now replaced the old Search API, but you can still use Google Custom Search to search the entire web, although the steps are not obvious from the Custom Search setup.
To create a Google Custom Search engine that searches th...
How much is the overhead of smart pointers compared to normal pointers in C++?
...e, and soon shared_ptrs become the default memory management technique. So now you have repeated 1-3% abstraction penalties which are taken over and over again.
– Nathan Doromal
Nov 27 '19 at 14:53
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How can I delay a method call for 1 second?
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You could also use a block
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 1 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
[object method];
});
Most of time you will want to use dispatch_get_main_queue, although if there is no UI in the method you could use a global queue.
Edit:
Swift...
How does std::forward work? [duplicate]
I know what it does and when to use it but I still can't wrap my head around how it works. Please be as detailed as possible and explain when std::forward would be incorrect if it was allowed to use template argument deduction.
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browser sessionStorage. share between tabs?
...sionStorage', JSON.stringify(sessionStorage));
// the other tab should now have it, so we're done with it.
localStorage.removeItem('sessionStorage'); // <- could do short timeout as well.
} else if (event.key == 'sessionStorage' && !sessionStorage.length) {
// another tab se...
Display numbers with ordinal suffix in PHP
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Although a bit difficult to understand at first, I do now think it best represents how the ordinal suffix system works for English.
– erisco
Jun 24 '10 at 14:44
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How to update Identity Column in SQL Server?
... it started
with a big number 10010 and it's related with another table, now I have 200 records and I want to fix this issue before the records increases.
...
Selenium c# Webdriver: Wait Until Element is Present
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This method is now deprecated, you should instead use the property ImplicitWait : Driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);
– Samuel Rondeau-Millaire
Mar 31 '17 at 15:17
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