map
Functions
map()
map<
T,U>(arrayOrPromise,callbackfn):Promise<U[]>
Calls a defined callback function on each element of an array and returns a new array with the results.
Type Parameters
| Type Parameter |
|---|
T |
U |
Parameters
| Parameter | Type | Description |
|---|---|---|
arrayOrPromise | T[] | Promise<T[]> | The array or Promise of an array to iterate over. |
callbackfn | (value, index, array) => U | Promise<U> | A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array. |
Returns
Promise<U[]>
A Promise that resolves with a new array containing the results of calling the callbackfn function on each element in the array.