omit

Return a partial object copy excluding specified keys.

Installation

npm install @stdlib/utils-omit

Usage

var omit = require( '@stdlib/utils-omit' );

omit( obj, keys )

Returns a partial copy of an object, which excludes specified keys.

var obj1 = {
    'a': 1,
    'b': 2,
    'c': 3
};

var obj2 = omit( obj1, 'b' );
// returns { 'a': 1, 'c': 3 }

var obj3 = omit( obj1, [ 'b', 'c' ] );
// returns { 'a': 1 }

The function ignores non-existent and inherited keys.

var obj1 = {
    'a': 1,
    'b': 2,
    'c': 3
};

var obj2 = omit( obj1, 'd' );
// returns { 'a': 1, 'b': 2, 'c': 3 }

Notes

• The function returns a shallow copy.
• The function only copies own properties. Hence, the function never copies inherited properties.

Examples

var omit = require( '@stdlib/utils-omit' );

var obj1 = {
    'a': 1,
    'b': 2,
    'c': 3,
    'd': 4,
    'e': 5
};

var obj2 = omit( obj1, [ 'b', 'c', 'e' ] );
// returns { 'a': 1, 'd': 4 }

See Also

• @stdlib/utils-omit-by: return a partial object copy excluding properties for which a predicate (function) returns a truthy value.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, 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.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.