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Filename : index.js

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'use strict';

var isString = require('is-string');
var isNumber = require('is-number-object');
var isBoolean = require('is-boolean-object');
var isSymbol = require('is-symbol');
var isBigInt = require('is-bigint');

// eslint-disable-next-line consistent-return
module.exports = function whichBoxedPrimitive(value) {
	// eslint-disable-next-line eqeqeq
	if (value == null || (typeof value !== 'object' && typeof value !== 'function')) {
		return null;
	}
	if (isString(value)) {
		return 'String';
	}
	if (isNumber(value)) {
		return 'Number';
	}
	if (isBoolean(value)) {
		return 'Boolean';
	}
	if (isSymbol(value)) {
		return 'Symbol';
	}
	if (isBigInt(value)) {
		return 'BigInt';
	}
};