External module "utils/nonindex-keys/docs/types/index.d"

Export assignment nonIndexKeys

• nonIndexKeys(obj: any): Array<string>

• Returns an array of an object's own enumerable property names which are not integer indices.

  Notes

  • Name order is not guaranteed, as object key enumeration is not specified according to the ECMAScript specification. In practice, however, most engines use insertion order to sort an object's keys, thus allowing for deterministic extraction.
  • If provided null or undefined, the function returns an empty array.

  Parameters

  • obj: any

    input value

  Returns Array < string >

  key array

  Example

  function Foo() {
      this.beep = 'boop';
      this[ 0 ] = 3.14;
      return this;
  }
  
  Foo.prototype.foo = 'bar';
  
  var obj = new Foo();
  
  var keys = nonIndexKeys( obj );
  // e.g., returns [ 'beep' ]