JavaScript Reflect ownKeys() Method Last Updated : 30 May, 2023 Comments Improve Suggest changes Like Article Like Report JaScript Reflect.ownKeys() method in Javascript is used to return an array of the target object's own property keys and it ignores the inherited properties. Syntax: Reflect.ownKeys( obj ) Parameters: This method accepts a single parameter as mentioned above and described below: Obj: This parameter holds the target object and it is used to get its own keys. Return value: This method always returns the Array of the target object's own property keys. Exceptions: A TypeError is an exception given as the result when the target is not an Object. Below examples illustrate the Reflect.ownKeys() method in JavaScript: Example 1: In this example, we will return the keys of the object using the Reflect.ownKeys() method in JavaScript. javascript const object1 = { property1: 332, property2: 2 }; const array1 = []; console.log(Reflect.ownKeys(object1)); console.log(Reflect.ownKeys(array1)); const obj = { ab: 5, bc: 5 }; const obj1 = { ab: 5, bc: 5, ca: 7 }; console.log(Reflect.ownKeys(obj)); console.log(Object.keys(obj1)); console.log(Reflect.ownKeys(obj1)); Output: [ 'property1', 'property2' ] [ 'length' ] [ 'ab', 'bc' ] [ 'ab', 'bc', 'ca' ] [ 'ab', 'bc', 'ca' ] Example 2: In this example, we will return the keys of the object using the Reflect.ownKeys() method in JavaScript. javascript console.log(Reflect.ownKeys({ z: 3, y: 2, x: 1 })); console.log(Reflect.ownKeys([])); let sym = Symbol.for('comet') let sym2 = Symbol.for('meteor') let obj = { [sym]: 0, 'val': 0, '45': 0, 'sdf': 0, [sym2]: 0, 'safss': 0, '34': 0, 'val2': 0 } console.log(Reflect.ownKeys(obj)); let obj1 = Object.create({}, { hoo: { value: function () { return this.hoo; } } }); console.log(Object.keys(obj1)); console.log(Reflect.ownKeys(obj1)); Output: [ 'z', 'y', 'x' ] [ 'length' ] [ '34', '45', 'val', 'sdf', 'safss', 'val2', Symbol(comet), Symbol(meteor) ] [] [ 'hoo' ] Supported Browsers: The browsers supported by JavaScript Reflect.ownKeys() method are listed below: Google Chrome 49 and aboveEdge 12 and aboveFirefox 42 and aboveOpera 36 and aboveSafari 10 and above We have a complete list of Javascript Reflects methods, to check those go through the JavaScript Reflect Reference article. Comment More infoAdvertise with us S SHUBHAMSINGH10 Follow Improve Article Tags : JavaScript Web Technologies JavaScript-Methods JavaScript-Reflect Similar Reads JavaScript Reflect apply() Method Javascript Reflect.apply() method is a standard build-in object in JavaScript which is used to call a function using the specified argument. It works similar to the Function.prototype.apply() method to call a function, but in an efficient manner and easy to understand. Syntax: Reflect.apply(target, 2 min read JavaScript Reflect construct() Method JavaScript Reflect.construct() method in JavaScript is used to call a new target. It gives also the added option to specify a different prototype. 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Syntax: Reflect.isE 2 min read JavaScript Reflect ownKeys() Method JaScript Reflect.ownKeys() method in Javascript is used to return an array of the target object's own property keys and it ignores the inherited properties. Syntax: Reflect.ownKeys( obj ) Parameters: This method accepts a single parameter as mentioned above and described below: Obj: This parameter h 2 min read Like