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34 lines
870 B
34 lines
870 B
3 years ago
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var isObject = require('./isObject'),
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isPrototype = require('./_isPrototype'),
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nativeKeysIn = require('./_nativeKeysIn');
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/** Used for built-in method references. */
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var objectProto = Object.prototype;
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/** Used to check objects for own properties. */
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var hasOwnProperty = objectProto.hasOwnProperty;
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/**
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* The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
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*
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* @private
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* @param {Object} object The object to query.
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* @returns {Array} Returns the array of property names.
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*/
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function baseKeysIn(object) {
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if (!isObject(object)) {
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return nativeKeysIn(object);
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}
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var isProto = isPrototype(object),
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result = [];
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for (var key in object) {
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if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
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result.push(key);
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}
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}
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return result;
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}
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module.exports = baseKeysIn;
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