invert
Import from @varavel/vdl-plugin-sdk/utils/objects.
function invert<K, V>(obj): Record<V, K>;
Inverts the keys and values of an object. The keys of the input object become the values of the output object and vice versa.
This function takes an object and creates a new object by inverting its keys and values. If the input object has duplicate values, the key of the last occurrence will be used as the value for the new key in the output object. It effectively creates a reverse mapping of the input object's key-value pairs.
Type Parameters
| Type Parameter | Description |
|---|---|
K extends PropertyKey | Type of the keys in the input object (string, number, symbol) |
V extends PropertyKey | Type of the values in the input object (string, number, symbol) |
Parameters
| Parameter | Type | Description |
|---|---|---|
obj | Record<K, V> | The input object whose keys and values are to be inverted |
Returns
Record<V, K>
A new object with keys and values inverted
Example
invert({ a: 1, b: 2, c: 3 }); // { 1: 'a', 2: 'b', 3: 'c' }
invert({ 1: 'a', 2: 'b', 3: 'c' }); // { a: '1', b: '2', c: '3' }
invert({ a: 1, 2: 'b', c: 3, 4: 'd' }); // { 1: 'a', b: '2', 3: 'c', d: '4' }
invert({ a: Symbol('sym1'), b: Symbol('sym2') }); // { [Symbol('sym1')]: 'a', [Symbol('sym2')]: 'b' }