13 lines
445 B
TypeScript
13 lines
445 B
TypeScript
function distinguish(thing: string | number | Date) {
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if (thing instanceof Object) {
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console.log("Aha!! It's a Date in " + thing.getFullYear());
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} else if (typeof thing === 'string') {
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console.log("Aha!! It's a string of length " + thing.length);
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} else {
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console.log("Aha!! It's the number " + thing.toPrecision(3));
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}
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}
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distinguish(new Date());
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distinguish("beef");
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distinguish(3.14159265); |