@stdlib/strided/base/offset-view/lib/main.js

Strided.

/**
* @license Apache-2.0
*
* Copyright (c) 2021 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';

// MAIN //

/**
* Returns a typed array view having the same data type as a provided input typed array and starting at a specified index offset.
*
* @param {(TypedArray|ComplexArray)} x - input array
* @param {NonNegativeInteger} offset - starting index
* @returns {(TypedArray|ComplexArray)} typed array view
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
*
* var x = new Float64Array( 10 );
*
* var out = offsetView( x, 0 );
* // returns <Float64Array>
*
* var bool = ( out.buffer === x.buffer );
* // returns true
*/
function offsetView( x, offset ) {
	return new x.constructor( x.buffer, x.byteOffset+(x.BYTES_PER_ELEMENT*offset), x.length-offset ); // eslint-disable-line max-len
}


// EXPORTS //

module.exports = offsetView;