| Name |
Description |
| assign() |
Copies properties from a source object to a target object |
| constructor |
Returns the function that created an object's prototype |
| create() |
Returns an object created from an existing object |
| defineProperties() |
Adds or changes properties |
| defineProperty() |
Adds or changes a property |
| delete |
Deletes a property from an object: |
| entries() |
Returns an array of the key/value pairs of an object |
| freeze() |
Prevents any changes to an object |
| fromEntries() |
Returns an object created from an iterable list of key/value pairs |
| getOwnPropertyDescriptor() |
Returns an array of the keys of an object |
| getOwnPropertyDescriptors() |
Returns an array of the keys of an object |
| getOwnPropertyNames() |
Returns an array of the keys of an object |
| groupBy() |
Groups object elements according to returned callback values |
| isExtensible() |
Returns true if an object is extensible |
| isFrozen() |
Returns true if an object is frozen |
| isSealed() |
Returns true if an object is sealed |
| keys() |
Returns an array of the keys of an object |
| preventExtensions() |
Prevents adding new properties to an object |
| prototype |
Let you to add properties and methods to JavaScript objects |
| seal() |
Prevents adding new or deleting existing object properties |
| toString() |
Converts an object to a string and returns the result |
| valueOf() |
Returns the primitive value of an object |
| values() |
Returns an array of the property values of an object |
