npmpackage.info

@stdlib/utils-define-property

Define (or modify) an object property.

0.2.4

Apache-2.0

JavaScript

Installations

npm install @stdlib/utils-define-property

Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Developer

stdlib-js

Developer Guide

BETA

Module System

CommonJS

Min. Node Version

>=0.10.0

Typescript Support

Yes

Node Version

16.20.2

NPM Version

8.19.4 Statistics

2 Stars

90 Commits

3 Watching

5 Branches

10 Contributors

Updated on 01 Nov 2024

Languages

JavaScript (100%)

Total Downloads

Cumulative downloads

Total Downloads

73,266,179

Last day

-11.2%

86,335

Compared to previous day

Last week

-1%

446,830

Compared to previous week

Last month

1,896,763

Compared to previous month

Last year

13.3%

34,750,269

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

@stdlib/string-format @stdlib/error-tools-fmtprodmsg

Versions

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

Define Property

Define (or modify) an object property.

Installation

1npm install @stdlib/utils-define-property

Alternatively,

To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
If you are using Deno, visit the deno branch (see README for usage intructions).
For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

1var defineProperty = require( '@stdlib/utils-define-property' );

defineProperty( obj, prop, descriptor )

Defines (or modifies) an object property.

1var obj = {};
2
3defineProperty( obj, 'foo', {
4    'value': 'bar',
5    'writable': false
6});
7
8obj.foo = 'boop';
9// throws <Error>

A property descriptor has the following optional properties:

configurable: boolean indicating if property descriptor can be changed and if the property can be deleted from the provided object. Default: false.
enumerable: boolean indicating if the property shows up when enumerating object properties. Default: false.
writable: boolean indicating if the value associated with the property can be changed with an assignment operator. Default: false.
value: property value.
get: function which serves as a getter for the property, or, if no getter, undefined. When the property is accessed, a getter function is called without arguments and with the this context set to the object through which the property is accessed (which may not be the object on which the property is defined due to inheritance). The return value will be used as the property value. Default: undefined.
set: function which serves as a setter for the property, or, if no setter, undefined. When assigning a property value, a setter function is called with one argument (the value being assigned to the property) and with the this context set to the object through which the property is assigned. Default: undefined.

Notes

Property descriptors come in two flavors: data descriptors and accessor descriptors. A data descriptor is a property that has a value, which may or may not be writable. An accessor descriptor is a property described by a getter-setter function pair. A descriptor must be one of these two flavors and cannot be both.

Examples

1var defineProperty = require( '@stdlib/utils-define-property' );
2
3function Foo( name ) {
4    if ( !(this instanceof Foo) ) {
5        return new Foo( name );
6    }
7    defineProperty( this, 'name', {
8        'value': name,
9        'configurable': true
10    });
11    return this;
12}
13
14var foo = new Foo( 'beep' );
15
16try {
17    delete foo.name;
18    console.log( '`name` property successfully deleted.' );
19} catch ( err ) {
20    console.error( err.message );
21}

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

No vulnerabilities found.

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9

Security-Policy

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3

Pinned-Dependencies

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Reason

dependency not pinned by hash detected -- score normalized to 3

Details

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Info: 31 out of 31 GitHub-owned GitHubAction dependencies pinned
Info: 18 out of 23 third-party GitHubAction dependencies pinned
Info: 0 out of 31 npmCommand dependencies pinned

2

Maintained

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0

Code-Review

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0

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SAST

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0

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0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

Score

4.4

/10

Last Scanned on 2024-11-18

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to @stdlib/utils-define-property

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0.2.2

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@stdlib/utils-define-nonenumerable-read-only-accessor

0.2.3

Define a non-enumerable read-only accessor.

@stdlib/utils-define-nonenumerable-read-write-accessor

0.2.2

Define a non-enumerable read-write accessor.

@stdlib/utils-define-property

Installations

Pull Requests

0

0

0

Issues

0

0

0

Releases

Unable to fetch releases

Developer

Developer Guide

CommonJS

>=0.10.0

Yes

16.20.2

8.19.4

Statistics

Languages

Total Downloads

73,266,179

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

Define Property

Installation

Usage

defineProperty( obj, prop, descriptor )

Notes

Examples

See Also

Notice

Community

License

Copyright

10

10

10

10

9

3

2

0

0

0

0

0

0

4.4

/10

Other packages similar to @stdlib/utils-define-property