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.
37 lines
956 B
37 lines
956 B
import isNil from './is-nil';
|
|
import isArrayLike from './is-array-like';
|
|
import getType from './get-type';
|
|
import isPrototype from './is-prototype';
|
|
var hasOwnProperty = Object.prototype.hasOwnProperty;
|
|
function isEmpty(value) {
|
|
/**
|
|
* isEmpty(null) => true
|
|
* isEmpty() => true
|
|
* isEmpty(true) => true
|
|
* isEmpty(1) => true
|
|
* isEmpty([1, 2, 3]) => false
|
|
* isEmpty('abc') => false
|
|
* isEmpty({ a: 1 }) => false
|
|
*/
|
|
if (isNil(value)) {
|
|
return true;
|
|
}
|
|
if (isArrayLike(value)) {
|
|
return !value.length;
|
|
}
|
|
var type = getType(value);
|
|
if (type === 'Map' || type === 'Set') {
|
|
return !value.size;
|
|
}
|
|
if (isPrototype(value)) {
|
|
return !Object.keys(value).length;
|
|
}
|
|
for (var key in value) {
|
|
if (hasOwnProperty.call(value, key)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
export default isEmpty;
|
|
//# sourceMappingURL=is-empty.js.map
|