shared/core-utils/common/object.ts

   1 function pick <O extends object, K extends keyof O> (object: O, keys: K[]): Pick<O, K> {
   2   const result: any = {}
   3
   4   for (const key of keys) {
   5     if (Object.prototype.hasOwnProperty.call(object, key)) {
   6       result[key] = object[key]
   7     }
   8   }
   9
  10   return result
  11 }
  12
  13 function omit <O extends object, K extends keyof O> (object: O, keys: K[]): Exclude<O, K> {
  14   const result: any = {}
  15   const keysSet = new Set(keys) as Set<string>
  16
  17   for (const [ key, value ] of Object.entries(object)) {
  18     if (keysSet.has(key)) continue
  19
  20     result[key] = value
  21   }
  22
  23   return result
  24 }
  25
  26 function getKeys <O extends object, K extends keyof O> (object: O, keys: K[]): K[] {
  27   return (Object.keys(object) as K[]).filter(k => keys.includes(k))
  28 }
  29
  30 function sortObjectComparator (key: string, order: 'asc' | 'desc') {
  31   return (a: any, b: any) => {
  32     if (a[key] < b[key]) {
  33       return order === 'asc' ? -1 : 1
  34     }
  35
  36     if (a[key] > b[key]) {
  37       return order === 'asc' ? 1 : -1
  38     }
  39
  40     return 0
  41   }
  42 }
  43
  44 export {
  45   pick,
  46   omit,
  47   getKeys,
  48   sortObjectComparator
  49 }