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TypeScript: Implicit cast from any to everything?
The any type is a special type. Where possible, you should avoid using the any type unless you want to take advantage of dynamic types. The any type is a short way of saying... Treat this variable as if it were compatible with any other type. So you can assign it to a string, a number, an array, an object, a interface with any structure... anything at all. So don't think of it as being an

Categories : Typescript

Is the Function interface missing a new() signature?
The root cause here is that TypeScript doesn't actually add a constructor property to objects that are class instances. The constructor property you used in extractType actually exists only because property access uses the apparent type of the operand, which adds the members of the global interface Object to the type. Technically this code works, but is obviously not generalizable to all classes

Categories : Typescript

typescript import alias or variable declaration with commonjs
Is there any difference between the two, and when should one be used over the other? Yes. import also brings it into the type declaration space. This is only significant for TypeChecking and not significant in the generated JS. See http://stackoverflow.com/a/26983363/390330 for an example.

Categories : Typescript


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TypeScript: Implicit cast from any to everything?
Is the Function interface missing a new() signature?
typescript import alias or variable declaration with commonjs
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