--- title: Object Is --- # Object Is ## Description The ```object.is()``` method is used to determine if two values are the same value. This method was introduced in ES6. ## Syntax ```Object.is(val1, val2)``` ### Parameters **val1** - first value to compare **val2** - second value to compare ## Return value A [Boolean](https://guide.freecodecamp.org/javascript/booleans) indicating whether the two arguments have the same value ## Description ```Object.is()``` compares two values for sameness, returning ```true``` if both values meet one of the following conditions: * ```undefined``` * ```null``` * Both ```true``` or both ```false``` * String of the same length and same characters * Same object * Both numbers and: * Both ```+0``` or both ```-0``` * Both ```NaN``` * or both a number that is not zero and not ```NaN``` ## Examples ``` Object.is('string', 'string'); // true Object.is(undefined, undefined); // true Object.is(null, null); // true Object.is('string, 'word'); // false Object.is(true, false); // false Object.is([], []); //false var obj = {name: Jane}; Object.is(obj, obj); // true Object.is(NaN, NaN); // true Object.is(+0, -0); // false Object.is(-0, -0); // true ``` #### More Information: [Object.is() MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is)
[Strict equality operator ```===```](https://guide.freecodecamp.org/certificates/comparison-with-the-strict-equality-operator)