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carlrip/index.ts

Created December 17, 2019 18:23
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const assertions - literals
Raw
index.ts
function logStatus(status: "LOADING" | "LOADED") {
console.log(status);
}
const Status = {
Loading: "LOADING",
Loaded: "LOADED",
};
logStatus(Status.Loading); // 💥 - Type error - Argument of type 'string' is not assignable to parameter of type '"LOADING" | "LOADED"'
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