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What is the difference between the dot (.) operator and -> in C++? [duplicate]
...he target.
dot works on objects; arrow works on pointers to objects.
std::string str("foo");
std::string * pstr = new std::string("foo");
str.size ();
pstr->size ();
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How to insert newline in string literal?
In .NET I can provide both \r or \n string literals, but there is a way to insert
something like "new line" special character like Environment.NewLine static property?
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How do I convert a TimeSpan to a formatted string? [duplicate]
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Would TimeSpan.ToString() do the trick for you? If not, it looks like the code sample on that page describes how to do custom formatting of a TimeSpan object.
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How can I know which radio button is selected via jQuery?
...before needed blah blah ) but for pure performance this works faster especially in older browsers: $("#myform").find("input[type='radio']:checked").val();
– Mark Schultheiss
Aug 3 '15 at 4:45
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How do I grep recursively?
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also good to know, if you are just looking for a fixed string and not a regex, use -F option. it will save you scads of time by not invoking the regex parser. very handy if you are searching lots of files.
– Jeff
May 6 '15 at 17:20
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How to convert a JSON string to a Map with Jackson JSON
... File from = new File("albumnList.txt");
TypeReference<HashMap<String,Object>> typeRef
= new TypeReference<HashMap<String,Object>>() {};
HashMap<String,Object> o = mapper.readValue(from, typeRef);
System.out.println("Got " + o);
}
It's ...
Convert Int to String in Swift
I'm trying to work out how to cast an Int into a String in Swift.
22 Answers
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Programmatically selecting text in an input field on iOS devices (mobile Safari)
How do you programmatically select the text of an input field on iOS devices, e.g. iPhone, iPad running mobile Safari?
10 A...
Comparison of C++ unit test frameworks [closed]
...));
}
THEORY("Foo should return the same value it was given, converted to string", (int input, std::string expected),
std::make_tuple(0, "0"),
std::make_tuple(1, "1"),
std::make_tuple(2, "2"))
{
Assert.Equal(expected, Foo(input));
}
Main features:
Incredibly fast: tests run conc...
Convert a JSON String to a HashMap
I'm using Java, and I have a String which is JSON:
18 Answers
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