lilleman
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18 lines
627 B
TypeScript
18 lines
627 B
TypeScript
/** Whatever was thrown or rejected, as an Error. `String()` throws on some values; this cannot. */
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export function errorFrom(reason: unknown): Error {
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if (reason instanceof Error) return reason;
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try {
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return new Error(String(reason));
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} catch {
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return new Error('A thrown value that cannot be converted to a string');
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}
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}
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const printable: readonly string[] = ['boolean', 'number', 'string'];
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/** String() throws on a null-prototype object, so anything but these is named by its type. */
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export function namedValue(value: unknown): string {
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return printable.includes(typeof value) ? String(value) : typeof value;
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}
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