filterKey

146 bytes

Usage

You have a utility function that is filtering an object’s properties somehow. Using filterKey will allow your function to filter those properties based on either an array of keys (an allowlist) or a function that returns a boolean for each property.

The KeyFilter type provided by Radashi is fundamental in taking advantage of the filterKey function. Be sure to use it to ensure type safety and maintainable code.

import * as _ from 'radashi'

function filterObject(obj: object, filter: _.KeyFilter) {
  for (const key in obj) {
    if (_.filterKey(obj, key, filter)) {
      // ...
    }
  }
}