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Using reflect, how do you set the value of a struct field?
...e marshals and unmarshals JSON from and to Go structures.
Here's a step-by-step example which sets the value of a struct field while carefully avoiding errors.
The Go reflect package has a CanAddr function.
func (v Value) CanAddr() bool
CanAddr returns true if the value's
address can be ...
Append TimeStamp to a File Name
... same file in the same directory. The way I have been doing it using C# is by adding a time stamp to the file name with something like this DateTime.Now.ToString().Replace('/', '-').Replace(':', '.') .
Is there a better way to do this?
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Error: Could not create the Java Virtual Machine Mac OSX Mavericks
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Normally this error occurs when you invoke java by supplying the wrong arguments/options. In this case it should be the version option.
java -version
So to double check you can always do java -help, and see if the option exists. In this case, there is no option such as...
What's the difference between git reflog and log?
...ent, its parent, and so on. It traverses back through the repo's ancestry, by recursively looking up each commit's parent.
(In practice, some commits have more than one parent. To see a more representative log, use a command like git log --oneline --graph --decorate.)
git reflog doesn't traverse H...
Passing a list of kwargs?
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As others have pointed out, you can do what you want by passing a dict. There are various ways to construct a dict. One that preserves the keyword=value style you attempted is to use the dict built-in:
keywords = dict(keyword1 = 'foo', keyword2 = 'bar')
Note the versatility ...
Pair/tuple data type in Go
... is no tuple type in Go, and you are correct, the multiple values returned by functions do not represent a first-class object.
Nick's answer shows how you can do something similar that handles arbitrary types using interface{}. (I might have used an array rather than a struct to make it indexable l...
How to create abstract properties in python abstract classes
... imageUploader: {
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How to undo a git merge with conflicts
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I found I needed to do git merge --abort followed by git reset --merge when having automerge conflict from popping my stash.
– Chef Pharaoh
Apr 19 '18 at 15:04
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How are GCC and g++ bootstrapped?
...e earliest implementation of C++. It was implemented in C++ but translated by what Stroustrup calls a "preprocessor" from C++ to C; not a full compiler by his definition, but still C++ was bootstrapped in C.
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List directory in Go
...the io/ioutil package. Per the docs:
ReadDir reads the directory named by dirname and returns a list of sorted directory entries.
The resulting slice contains os.FileInfo types, which provide the methods listed here. Here is a basic example that lists the name of everything in the current dire...