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Add new attribute (element) to JSON object using JavaScript

... object["property"] = value; or object.property = value; If you provide some extra info like exactly what you need to do in context you might get a more tailored answer. share | improve this ...
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What exceptions should be thrown for invalid or unexpected parameters in .NET?

...oo, that do not focus so much on the argument itself, but rather judge the call as a whole: InvalidOperationException – The argument might be OK, but not in the current state of the object. Credit goes to STW (previously Yoooder). Vote his answer up as well. NotSupportedException – The argumen...
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How can I check that a form field is prefilled correctly using capybara?

...uld be!) class MyPage < SitePrism::Page element :my_field, "input#my_id" def has_secret_value?(value) my_field.value == value end end my_page = MyPage.new expect(my_page).to have_secret_value "foo" share ...
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How to echo with different colors in the Windows command line

...as Powershell you can do something like this (assuming BAT / CMD script): CALL:ECHORED "Print me in red!" :ECHORED %Windir%\System32\WindowsPowerShell\v1.0\Powershell.exe write-host -foregroundcolor Red %1 goto:eof Edit: (now simpler!) It's an old answer but I figured I'd clarify & simpli...
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Xcode: Build Failed, but no error messages

...port Navigator present in Navigator window. Open Navigator by pressing Hide/Show Navigator button present in top-left side of Xcode. Open Report Navigator by pressing last button present on list of buttons in Navigator window. Here you can view reasons either By Group or By Time ...
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ios Upload Image and Text using HTTP POST

...hString:@"lan"]]; [_params setObject:[NSString stringWithFormat:@"%d", userId] forKey:[NSString stringWithString:@"userId"]]; [_params setObject:[NSString stringWithFormat:@"%@",title] forKey:[NSString stringWithString:@"title"]]; // the boundary string : a random string, that will not repeat in po...
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How do I safely pass objects, especially STL objects, to and from a DLL?

... there's no standard C++ ABI (application binary interface, a standard for calling conventions, data packing/alignment, type size, etc.), you will have to jump through a lot of hoops to try and enforce a standard way of dealing with class objects in your program. There's not even a guarantee it'll w...
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mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get t

...QLi code produces an error like mysqli_fetch_assoc() expects parameter..., Call to a member function bind_param()... or similar. Or even without any error, but the query doesn't work all the same. It means that your query failed to execute. Every time a query fails, MySQL has an error message that...
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How can I check whether a option already exist in select by JQuery

...h can be good for beginners. Certainly not the best answer, but it is a valid one. – roberthuttinger Apr 9 '13 at 14:42 1 ...
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Better way to check if a Path is a File or a Directory?

... @KeyMs92 Its bitwise math. Basically, attr is some binary value with one bit meaning "this is a directory". The bitwise and & operator will return a binary value where only the bits that are on (1) in both the operands are turned on. In this case doi...