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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]

... answered Mar 7 '11 at 17:36 Andrzej DoyleAndrzej Doyle 95.5k2929 gold badges181181 silver badges224224 bronze badges ...
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How to use executables from a package installed locally in node_modules?

...ong points out in their answer below, since npm 5.2.0 you can use npx [command], which is more convenient. OLD ANSWER for versions before 5.2.0: The problem with putting ./node_modules/.bin into your PATH is that it only works when your current working directory is the root of your project dire...
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possible EventEmitter memory leak detected

... How did this answer get all these up votes, and was choosen as correct answer? even though it should work, but this is completely wrong!! – ProllyGeek Dec 30 '18 at 10:39 ...
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How often does python flush to a file?

... to use the system default, which is usually line buffered for tty devices and fully buffered for other files. If omitted, the system default is used. code: bufsize = 0 f = open('file.txt', 'w', buffering=bufsize) shar...
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Replacing some characters in a string with another character

I have a string like AxxBCyyyDEFzzLMN and I want to replace all the occurrences of x , y , and z with _ . 5 Answers ...
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Can anyone explain python's relative imports?

...With start.py: import pkg.sub.relative Now pkg is the top level package and your relative import should work. If you want to stick with your current layout you can just use import parent. Because you use start.py to launch your interpreter, the directory where start.py is located is in your py...
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How to remove all callbacks from a Handler?

I have a Handler from my sub-Activity that was called by the main Activity . This Handler is used by sub-classes to postDelay some Runnables, and I can't manage them. Now, in the onStop event, I need to remove them before finishing the Activity (somehow I called finish() , but it still call ...
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Bootstrap: align input with button

Why don't buttons and inputs align well in Bootstrap? 12 Answers 12 ...
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How do I load the contents of a text file into a javascript variable?

I have a text file in the root of my web app http://localhost/foo.txt and I'd like to load it into a variable in javascript.. in groovy I would do this: ...
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How to get the parents of a merge commit in git?

Some git commands take the parent as a revision; others (such as git revert ), as a parent number. How to get the parents for both cases. I don’t want to use the graphical log command as that often requires scrolling down a long tree to find the second parent. ...