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0 pointsDCoder10y ago0 comments

> Every JS code is a valid TS, since TS is a superset of JS.

There are still cases where you'll need to sprinkle <any>. For example:

    var state = { foo: 1 };
    if(something) {
      state.bar = 2;
    }

is valid JS, but the TS compiler will complain that `state` does not have a member named `bar`.

0 comments

addicted10y ago

The TS compiler will complain but still generate working JS code, so you don't lose anything.

DCoderOP10y ago

But the compiler's output will be polluted with these false positives, making it harder to see actual errors. (Also, there's a compiler flag to prevent codegen on error, which comes in handy sometimes.)

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