You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
19 lines
639 B
19 lines
639 B
import getLength from './_getLength.js';
|
|
import isArray from './isArray.js';
|
|
import isString from './isString.js';
|
|
import isArguments from './isArguments.js';
|
|
import keys from './keys.js';
|
|
|
|
// Is a given array, string, or object empty?
|
|
// An "empty" object has no enumerable own-properties.
|
|
export default function isEmpty(obj) {
|
|
if (obj == null) return true;
|
|
// Skip the more expensive `toString`-based type checks if `obj` has no
|
|
// `.length`.
|
|
var length = getLength(obj);
|
|
if (typeof length == 'number' && (
|
|
isArray(obj) || isString(obj) || isArguments(obj)
|
|
)) return length === 0;
|
|
return getLength(keys(obj)) === 0;
|
|
}
|