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Discussion on: Typescript for beginners: how to ignore code

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Emmanuel Mahuni •

What actually wanted to do is make the compiler ignore the line completely and not even compile it. The reason is it's changing the code in such a way that it becomes useless. So I wanted ts to actually ignore the line completely and move to the next. In other words copy the line as it is and paste it in the output code.
I want the following line to remain that way:

isAsyncFunction = (fn: Function) => fn instanceof Object.getPrototypeOf(async function(){}).constructor;
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ts compiles this to:

isAsyncFunction = (fn) => fn instanceof Object.getPrototypeOf(function () {
    return __awaiter(this, void 0, void 0, function* () { });
}).constructor;
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I want it to at least not change how the line is going to behave.

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Emmanuel Mahuni • • Edited

What I ended up doing was protect the code in an eval statement.