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Return a partial object copy containing properties for which a predicate (function) returns a truthy value.
import pickBy from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-pick-by@deno/mod.js';Returns a partial object copy containing properties for which a predicate returns a truthy value.
function predicate( key, value ) {
return ( value > 1 );
}
var obj1 = {
'a': 1,
'b': 2,
'c': 3
};
var obj2 = pickBy( obj1, predicate );
// returns { 'b': 2, 'c': 3 }- The function returns a shallow copy.
- The function only copies own properties. Hence, the function never copies inherited properties.
import pickBy from 'https://cdn.jsdelivr.net/gh/stdlib-js/utils-pick-by@deno/mod.js';
function predicate( key, value ) {
return ( typeof value === 'number' );
}
var obj1 = {
'a': '1',
'b': 2,
'c': NaN,
'd': null
};
var obj2 = pickBy( obj1, predicate );
// returns { 'b': 2, 'c': NaN }@stdlib/utils-pick: return a partial object copy containing only specified keys.
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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