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What does @synchronized() do as a singleton method in objective C?
I just created a singleton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning.
...
Sequelize.js: how to use migrations and sync
...isten(3000);
// do your stuff
});
});
I can't try this right now, but at first look it should work.
UPD Apr. 2016
After a year, still useful, so sharing my current tips. For now, I'm installing sequelize-cli package as required live dependancy, and then modify NPM startup scripts in ...
Can I get “&&” or “-and” to work in PowerShell?
...:
build
if ($?) {
run_tests
}
2019/11/27: The &&operator is now available for PowerShell 7 Preview 5+:
PS > echo "Hello!" && echo "World!"
Hello!
World!
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improve ...
Is it possible to move/rename files in Git and maintain their history?
...op jumping. It's not impossible, just tedious and possibly not worth it.
Now, since you're still with me, you're a probably solo developer renaming a completely isolated file. Let's move a file using filter-tree!
Assume you're going to move a file old into a folder dir and give it the name new
T...
How to use JavaScript source maps (.map files)?
...
The .map files are for js and css (and now ts too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugly code. Hopefully, w...
'npm' is not recognized as internal or external command, operable program or batch file
... and hit enter)
At the prompt (C:\>) type npm and hit enter; you should now see some help text (Usage: npm <command> etc.) rather than "npm is not recognized..."
Now you can start using npm!
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What are the barriers to understanding pointers and what can be done to overcome them? [closed]
...implified. There's more overhead and a lot more details you would
need to know if you need to deal with memory on a low-level basis. However, for the
intents of explaining memory and pointers, it is accurate enough.
Let's assume the THouse class used below looks like this:
type
THouse = clas...
How can I strip first and last double quotes?
... I'd recommend handling strings that are 2 characters or less. Right now this function can throw an index out of bounds exception for a string of length 0. Additionally, you can strip a quote from a string that is 1 character long. You could add a guard, len(s) >= 2, or something similar.
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Why doesn't Mockito mock static methods?
...o think mocking tools should give you what you need without assuming they know what's better for you. For example, if I was using a third party library that utilized a static method call that I needed to mock, it would be nice to be able to do so. The idea that a mock framework won't provide you s...
Converting JSON String to Dictionary Not List
...em 0 in the list, as shown below:
json1_data = json.loads(json1_str)[0]
Now you can access the data stored in datapoints just as you were expecting:
datapoints = json1_data['datapoints']
I have one more question if anyone can bite: I am trying to take the average of the first elements in ...