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_baseKeysIn.js
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_baseKeysIn.js
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define(['./_Reflect', './_iteratorToArray'], function(Reflect, iteratorToArray) {
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
var undefined;
/** Used for built-in method references. */
var objectProto = Object.prototype;
/** Built-in value references. */
var enumerate = Reflect ? Reflect.enumerate : undefined,
propertyIsEnumerable = objectProto.propertyIsEnumerable;
/**
* The base implementation of `_.keysIn` which doesn't skip the constructor
* property of prototypes or treat sparse arrays as dense.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
*/
function baseKeysIn(object) {
object = object == null ? object : Object(object);
var result = [];
for (var key in object) {
result.push(key);
}
return result;
}
// Fallback for IE < 9 with es6-shim.
if (enumerate && !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf')) {
baseKeysIn = function(object) {
return iteratorToArray(enumerate(object));
};
}
return baseKeysIn;
});