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Test if an object's own property is write-only.
import isWriteOnlyProperty from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-write-only-property@esm/index.mjs';Returns a boolean indicating if a value has a write-only property.
import defineProperty from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-define-property@esm/index.mjs';
var obj = {
'foo': 'bar'
};
defineProperty( obj, 'beep', {
'configurable': false,
'enumerable': false,
'writable': false,
'value': 'boop'
});
defineProperty( obj, 'accessor', {
'configurable': false,
'enumerable': true,
'set': function setter( v ) {
obj.foo = v;
}
});
var bool = isWriteOnlyProperty( obj, 'foo' );
// returns false
bool = isWriteOnlyProperty( obj, 'beep' );
// returns false
bool = isWriteOnlyProperty( obj, 'accessor' );
// returns true-
Value arguments other than
nullorundefinedare coerced toobjects.var bool = isWriteOnlyProperty( 'beep', 'length' ); // returns false
-
Property arguments are coerced to
strings.import defineProperty from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-define-property@esm/index.mjs'; var obj = {}; function setter( v ) { obj.null = v; } defineProperty( obj, 'null', { 'configurable': false, 'enumerable': true, 'set': setter }); var bool = isWriteOnlyProperty( obj, null ); // returns true
<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import isWriteOnlyProperty from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-write-only-property@esm/index.mjs';
var bool = isWriteOnlyProperty( 'a', 'length' );
// returns false
bool = isWriteOnlyProperty( { 'a': 'b' }, 'a' );
// returns false
bool = isWriteOnlyProperty( [ 'a' ], 0 );
// returns false
bool = isWriteOnlyProperty( { 'null': false }, null );
// returns false
bool = isWriteOnlyProperty( { '[object Object]': false }, {} );
// returns false
bool = isWriteOnlyProperty( {}, 'toString' );
// returns false
bool = isWriteOnlyProperty( {}, 'hasOwnProperty' );
// returns false
bool = isWriteOnlyProperty( null, 'a' );
// returns false
bool = isWriteOnlyProperty( void 0, 'a' );
// returns false
</script>
</body>
</html>@stdlib/assert-is-read-only-property: test if an object's own property is read-only.@stdlib/assert-is-read-write-property: test if an object's own property is readable and writable.@stdlib/assert-is-writable-property: test if an object's own property is writable.@stdlib/assert-is-write-only-property-in: test if an object's own or inherited property is write-only.
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.
Copyright © 2016-2024. The Stdlib Authors.
