@aws/pdk
Version:
All documentation is located at: https://aws.github.io/aws-pdk
60 lines (52 loc) • 1.94 kB
JavaScript
var _curry1 =
/*#__PURE__*/
require("./internal/_curry1.js");
var _isArguments =
/*#__PURE__*/
require("./internal/_isArguments.js");
var _isArray =
/*#__PURE__*/
require("./internal/_isArray.js");
var _isObject =
/*#__PURE__*/
require("./internal/_isObject.js");
var _isString =
/*#__PURE__*/
require("./internal/_isString.js");
var _isTypedArray =
/*#__PURE__*/
require("./internal/_isTypedArray.js");
/**
* Returns the empty value of its argument's type. Ramda defines the empty
* value of Array (`[]`), Object (`{}`), String (`''`),
* TypedArray (`Uint8Array []`, `Float32Array []`, etc), and Arguments. Other
* types are supported if they define `<Type>.empty`,
* `<Type>.prototype.empty` or implement the
* [FantasyLand Monoid spec](https://github.com/fantasyland/fantasy-land#monoid).
*
* Dispatches to the `empty` method of the first argument, if present.
*
* @func
* @memberOf R
* @since v0.3.0
* @category Function
* @sig a -> a
* @param {*} x
* @return {*}
* @example
*
* R.empty(Just(42)); //=> Nothing()
* R.empty([1, 2, 3]); //=> []
* R.empty('unicorns'); //=> ''
* R.empty({x: 1, y: 2}); //=> {}
* R.empty(Uint8Array.from('123')); //=> Uint8Array []
*/
var empty =
/*#__PURE__*/
_curry1(function empty(x) {
return x != null && typeof x['fantasy-land/empty'] === 'function' ? x['fantasy-land/empty']() : x != null && x.constructor != null && typeof x.constructor['fantasy-land/empty'] === 'function' ? x.constructor['fantasy-land/empty']() : x != null && typeof x.empty === 'function' ? x.empty() : x != null && x.constructor != null && typeof x.constructor.empty === 'function' ? x.constructor.empty() : _isArray(x) ? [] : _isString(x) ? '' : _isObject(x) ? {} : _isArguments(x) ? function () {
return arguments;
}() : _isTypedArray(x) ? x.constructor.from('') : void 0 // else
;
});
module.exports = empty;