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SQL join on multiple columns in same tables
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Undo a particular commit in Git that's been pushed to remote repos
What is the simplest way to undo a particular commit that is:
4 Answers
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Async/Await vs Threads
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can it completely replace the old way of using Threads ?
No. A thread can do many more useful things. Await is specifically designed to deal with something taking time, most typically an I/O request. Which traditionally was don...
Why switch is faster than if
... jump to the next clause and so on. With switch the JVM loads the value to compare and iterates through the value table to find a match, which is faster in most cases.
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Async call with await in HttpClient never returns
...ng.
This is because GetResult() blocks the current thread until the Task completes. When the task does complete it attempts to re-enter the thread context in which it was started but cannot because there is already a thread in that context, which is blocked by the call to GetResult()... deadlock!
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Get users by name property using Firebase
... the list at online-b-cards/users.
Rather than using push here, I would recommend using set, and storing the data for each user using a unique key, such as the user's email address. Then you can access the user's data directly by navigating to online-b-cards/users/<email> via the Firebase JS ...
How to escape hash character in URL
...t starts the hash fragment, so you need to encode it in the query string. Compare encodeURIComponent('#'). What do you see in Chrome 74?
– Robert Tupelo-Schneck
May 21 '19 at 14:48
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Which characters are valid/invalid in a JSON key name?
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Can I comment out a line in a .git/config file?
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Yes, you can comment lines out of Git config files using # or ;.
From the documentation:
Syntax
The syntax is fairly flexible and permissive; whitespaces are mostly ignored. The # and ; characters begin comments to the end of li...
How to bind an enum to a combobox control in WPF?
... have seen tries to add nice looking display strings but I don't want that complexity.
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