Edit: isArguments.js
'use strict'; var toStr = Object.prototype.toString; module.exports = function isArguments(value) { var str = toStr.call(value); var isArgs = str === '[object Arguments]'; if (!isArgs) { isArgs = str !== '[object Array]' && value !== null && typeof value === 'object' && typeof value.length === 'number' && value.length >= 0 && toStr.call(value.callee) === '[object Function]'; } return isArgs; };
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