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* @license Apache-2.0
*
* Copyright (c) 2023 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var resolveGetter = require( '@stdlib/array/base/resolve-getter' );
// MAIN //
/**
* Returns the last element of an array-like object.
*
* @param {Collection} arr - input array
* @returns {*} last element
*
* @example
* var out = last( [ 1, 2, 3 ] );
* // returns 3
*/
function last( arr ) {
var get;
var idx;
// Resolve an accessor for retrieving input array elements:
get = resolveGetter( arr );
// Resolve the last index:
idx = arr.length - 1;
// Return the last element:
if ( idx < 0 ) {
return;
}
return get( arr, idx );
}
// EXPORTS //
module.exports = last;
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