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