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16 lines
446 B
JavaScript
16 lines
446 B
JavaScript
import { inspect } from 'util';
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export function format(x) {
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// we're trying to mimic console.log, so we avoid wrapping strings in quotes:
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if (typeof x === 'string') return x;
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else if (x instanceof Set) {
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return `Set(${x.size}) {${Array.from(x).join(', ')}}`;
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} else if (x instanceof Map) {
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return `Map(${x.size}) {${Array.from(
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x.entries(),
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([k, v]) => `${k} => ${v}`
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).join(', ')}})`;
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}
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return inspect(x);
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}
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