time-to-botec/js/node_modules/@stdlib/assert/has-class-support/lib/main.js

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/**
* @license Apache-2.0
*
* Copyright (c) 2018 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 evil = require( '@stdlib/utils/eval' );
// MAIN //
/**
* Tests for native `class` support.
*
* @returns {boolean} boolean indicating if an environment has native `class` support
*
* @example
* var bool = hasClassSupport();
* if ( bool ) {
* console.log( 'Environment has native class support.' );
* } else {
* console.log( 'Environment lacks native class support.' );
* }
*/
function hasClassSupport() {
var bool;
try {
evil( '"use strict"; class A{};' );
bool = true;
} catch ( err ) { // eslint-disable-line no-unused-vars
bool = false;
}
return bool;
}
// EXPORTS //
module.exports = hasClassSupport;