arco

Module: selectors

Source:

Methods

<inner> createSelector(properties [, getComputedValue] [, customMemoizer] [, customMemoizerOptions])

based on the array of properties and the reducer passed create a selector

Parameters:
Name Type Argument Default Description
properties Array.<string> | Object

properties to retrieve from state
getComputedValue function <optional>
 getIdentityValue

method for getting the computed value from the properties
customMemoizer function <optional>
 null

custom memoizer function to use in place of the default
customMemoizerOptions Object <optional>
 {}

additional options for using the custom memoizer option
Source:
Returns:
Type
function
Example
import {
 createSelector
} from 'arco';

const hasBaz = createSelector(['foo.bar[0].baz'], (baz) => {
 return !!baz;
});

hasBaz({foo: {bar: [{ baz: 'Here!'}]}}); // true
hasBaz({foo: {bar: [{ baz: 'Here!'}]}}); // true, pulled from cache