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hallettj/prettyPrint-with-bad-type-guard.ts Secret

Created January 22, 2019 19:15
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prettyPrint-with-bad-type-guard.ts
import isArray from "isarray"
function prettyPrint(x: any): string {
if (isArray(x)) { // whoops - this `isArray` is not a type guard!
return "[" + x.mop(prettyPrint).join(", ") + "]"
}
/* snip */
return "etc."
}
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