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Return an array of an object's own and inherited symbol properties.
import propertySymbolsIn from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-property-symbols-in@esm/index.mjs';Returns an array of an object's own and inherited symbol properties.
var symbols = propertySymbolsIn( [] );- In contrast to the built-in
Object.getOwnPropertySymbols(), if providednullorundefined, the function returns an emptyarray, rather than throwing an error.
<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import hasSymbolSupport from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-has-symbol-support@esm/index.mjs';
import Symbol from 'https://cdn.jsdelivr.net/gh/stdlib-js/symbol-ctor@esm/index.mjs';
import propertySymbolsIn from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-property-symbols-in@esm/index.mjs';
var hasSymbols = hasSymbolSupport();
function Foo() {
if ( hasSymbols ) {
this[ Symbol( 'beep' ) ] = 'boop';
}
return this;
}
if ( hasSymbols ) {
Foo.prototype[ Symbol( 'foo' ) ] = 'bar';
}
var obj = new Foo();
var symbols = propertySymbolsIn( obj );
console.log( symbols );
</script>
</body>
</html>@stdlib/utils-property-names-in: return an array of an object's own and inherited enumerable and non-enumerable property names.@stdlib/utils-property-symbols: return an array of an object's own symbol properties.
This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
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