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Converting Go struct to JSON
I am trying to convert a Go struct to JSON using the json package but all I get is {} . I am certain it is something totally obvious but I don't see it.
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How and why does 'a'['toUpperCase']() in JavaScript work?
...lue the variable bar contains. So using the foo[] notation instead of foo. allows you to use a dynamic property name.
Let's have a look at callMethod:
First of all, it returns a function that takes obj as its argument. When that function is executed it will call method on that object. So the giv...
How do I concatenate const/literal strings in C?
...nnot be used as a buffer, since it is a constant. Thus, you always have to allocate a char array for the buffer.
The return value of strcat can simply be ignored, it merely returns the same pointer as was passed in as the first argument. It is there for convenience, and allows you to chain the call...
Build query string for System.Net.HttpClient get
...olve building a name value collection and url encoding
those and then finally concatenating them?
Sure:
var query = HttpUtility.ParseQueryString(string.Empty);
query["foo"] = "bar<>&-baz";
query["bar"] = "bazinga";
string queryString = query.ToString();
will give you the expected re...
What's the use of do while(0) when we define a macro? [duplicate]
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As Amo said, it's a clever trick that allows a macro to be a C statement that must end with a semicolon. It makes the macro act exactly like a function call, so far as statement construction and termination (with ';') is concerned.
– Eddie
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How to clear ostringstream [duplicate]
...gs are set or you don't care about resetting them, then you don't need to call clear().
Usually it is easier, cleaner, and more straightforward (straightforwarder?) just to use a new std::ostringstream object instead of reusing an existing one, unless the code is used in a known performance hot spo...
jQuery dot in ID selector? [duplicate]
...also a lot of extra processing on jQuery's part that is unnecessary, where all you really need to do is escape the "." character...
– Ian
Nov 25 '12 at 7:48
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How to add pandas data to an existing csv file?
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Thanks for the answer. This will allow me append new df on row-wise. But could you let me know how can I append the new df on column-wise?
– datanew
Nov 9 '18 at 21:30
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Best way to extract a subvector from a vector?
Suppose I have a std::vector (let's call it myVec ) of size N . What's the simplest way to construct a new vector consisting of a copy of elements X through Y, where 0
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Printing all global variables/local variables?
How can I print all global variables/local variables? Is that possible in gdb?
3 Answers
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