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x/ramda/isEmpty.js

:ram: Practical functional Javascript
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import _curry1 from './internal/_curry1';import empty from './empty';import equals from './equals';

/** * Returns `true` if the given value is its type's empty value; `false` * otherwise. * * @func * @memberOf R * @since v0.1.0 * @category Logic * @sig a -> Boolean * @param {*} x * @return {Boolean} * @see R.empty * @example * * R.isEmpty([1, 2, 3]); //=> false * R.isEmpty([]); //=> true * R.isEmpty(''); //=> true * R.isEmpty(null); //=> false * R.isEmpty({}); //=> true * R.isEmpty({length: 0}); //=> false */var isEmpty = _curry1(function isEmpty(x) { return x != null && equals(x, empty(x));});export default isEmpty;