Microsoft/TypeScript
No error for undeclared #private property in `.js` files
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#35,962 opened on 2020/01/02
BugDomain: JavaScriptEffort: ModerateHelp Wanted
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説明
class Thing {
/**
* @param prop {string}
*/
constructor(prop) {
this.#prop = prop;
}
}
This class assigns to #prop, but it's an error to use #prop without declaring it.
This is reported as a SyntaxError, so this should report an error even outside of checkJs.