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asharov/gist:5511991

Created May 3, 2013 17:55
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Prepending stuff to an Rx stream
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gistfile1.txt
function prependNilObject(stream) {
var nilValue = {};
for (var i = 1; i < arguments.length; ++i) {
nilValue[arguments[i]] = null;
}
var nilStream = Rx.Observable.returnValue(nilValue);
return nilStream.concat(stream);
}
@pyrtsa
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pyrtsa commented May 3, 2013

return stream.startWith(nilValue) simplifies it a bit.

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