TypeScript: Declare a variable with type of object literal -

i trying find proper signature (current version of typescript 1.7) function should accept reference types, not primitives:

function onlyobject(x: ???) {     if (typeof x !== 'object') {         throw "bad arg!";     } }

so function above should work:

onlyobject({ }); onlyobject(new date()); onlyobject(new number(1)); onlyobject(null); onlyobject(function () { });

but fail in compile time:

onlyobject("awd"); onlyobject(1); onlyobject(false);

there isn't way express in language.

if you're feeling industrious, can add it, project accepting pull requests feature.

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