@stdlib/utils-define-memoized-configurable-read-only-property
v0.2.2
Published
Define a configurable memoized read-only object property.
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Configurable Memoized Read-Only
Define a configurable memoized read-only object property.
Installation
npm install @stdlib/utils-define-memoized-configurable-read-only-property
Usage
var setMemoizedConfigurableReadOnly = require( '@stdlib/utils-define-memoized-configurable-read-only-property' );
setMemoizedConfigurableReadOnly( obj, prop, fcn )
Defines a configurable memoized read-only object property.
var obj = {};
function foo() {
return 'bar';
}
setMemoizedConfigurableReadOnly( obj, 'foo', foo );
var v = obj.foo;
// returns 'bar'
The last argument should be a synchronous function whose return value will be memoized and set as the property value.
Notes
- A configurable read-only property is enumerable.
Examples
var fibonacci = require( '@stdlib/math-base-special-fibonacci' );
var setMemoizedConfigurableReadOnly = require( '@stdlib/utils-define-memoized-configurable-read-only-property' );
function Foo() {
var self;
if ( !(this instanceof Foo) ) {
return new Foo();
}
self = this;
this.count = 0;
setMemoizedConfigurableReadOnly( this, 'fibo', fibo );
return this;
function fibo() {
self.count += 1;
return fibonacci( 73 );
}
}
var foo = new Foo();
var i;
for ( i = 0; i < 10; i++ ) {
console.log( 'F: %d. Count: %d.', foo.fibo, foo.count );
}
See Also
@stdlib/utils-define-configurable-read-only-property
: define a configurable read-only property.@stdlib/utils-define-memoized-read-only-property
: define a memoized read-only object property.@stdlib/utils-define-read-only-property
: define a read-only property.
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.