25 lines
438 B
JavaScript
25 lines
438 B
JavaScript
'use strict';
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// https://262.ecma-international.org/5.1/#sec-8
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module.exports = function Type(x) {
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if (x === null) {
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return 'Null';
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}
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if (typeof x === 'undefined') {
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return 'Undefined';
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}
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if (typeof x === 'function' || typeof x === 'object') {
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return 'Object';
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}
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if (typeof x === 'number') {
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return 'Number';
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}
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if (typeof x === 'boolean') {
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return 'Boolean';
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}
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if (typeof x === 'string') {
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return 'String';
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}
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};
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