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10 lines
244 B
10 lines
244 B
2 years ago
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'use strict';
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var functionName = require('function.prototype.name');
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var anon = functionName(function () {});
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module.exports = function isAbstractClosure(x) {
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return typeof x === 'function' && (!x.prototype || functionName(x) === anon);
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};
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