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How to convert a ruby hash object to JSON?
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Add the following line on the top of your file
require 'json'
Then you can use:
car = {:make => "bmw", :year => "2003"}
car.to_json
Alternatively, you can use:
JSON.generate({:make => "bmw", :year => "2003"})
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What is the relationship between the docker host OS and the container base image OS?
... within the container (qemu, kvm, etc.)
Docker manage images that are the file system representation. You can install any linux distribution or simply put binaries.
Indeed, for the convenience of the example, we often rely on the base images, but you could also create your image without any of the...
How to change highlighted occurrences color in Eclipse's sidebar?
...ar in the right ruler to show you the location of other occurrences in the file.
6 Answers
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Assigning code to a variable
...s.Add("System.Drawing.dll");
// True - memory generation, false - external file generation
parameters.GenerateInMemory = true;
// True - exe file generation, false - dll file generation
parameters.GenerateExecutable = true;
Compile assembly:
CompilerResults results = provider.CompileAssemblyFromSo...
How to fight tons of unresolved variables warning in Webstorm?
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using a dummy js file with anonymous function expression returning the json literal, as written at http://devnet.jetbrains.com/message/5366907, may be a solution. I can also suggest creating a fake variable that will hold this json value, an...
Hide all warnings in ipython
... calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
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How can I add a class to a DOM element in JavaScript?
...m.className = ('new_class');
newItem.innerHTML = ('<img src="./profitly_files/TimCover1_bigger.jpg" width=50 height=50> some long text with ticker $DDSSD');
var list = document.getElementById('x-auto-1');
list.insertBefore(newItem, list.childNodes[0]);
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Is type=“text/css” necessary in a tag?
...ute if the browser may not support the type => useless for web standard files like CSS.
– jave.web
Oct 13 '19 at 18:29
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Why is the String class declared final in Java?
...of the things that forced Strings to be immutable was security. You have a file open method. You pass a String to it. And then it's doing all kind of authentication checks before it gets around to doing the OS call. If you manage to do something that effectively mutated the String, after the securit...
How to use Active Support core extensions
... you are playing with some code or something, you can add or modify .irbrc file to require all libs that you use all the time. It will load them automatically on start. I.E. I use awesome_print, hirb and some custom methods all the time - so I just put them there and don't have to think twice for th...