Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Supply Chain Security
Vulnerability
Quality
Maintenance
License
Socket optimized override available
MaintenancePackage can be replaced with a Socket optimized override.
Found 1 instance in 1 package
The `is-set` npm package is designed to provide a simple and efficient way to check if a given value is a Set object. This can be particularly useful when working with collections of unique values and you need to ensure that the data structure being manipulated or checked is indeed a Set.
Check if a value is a Set
This feature allows you to verify if a given value is an instance of a Set. It is particularly useful when you need to differentiate between Set objects and other iterable or collection types in JavaScript, such as Arrays, Objects, or even WeakSets. The code sample demonstrates how to use `is-set` to check various values, showing that it correctly identifies Set instances and distinguishes them from other types.
"use strict";\nconst isSet = require('is-set');\n\nconsole.log(isSet(new Set())); // true\nconsole.log(isSet(new WeakSet())); // false\nconsole.log(isSet([1, 2, 3])); // false\nconsole.log(isSet({})); // false\nconsole.log(isSet(undefined)); // false"While `lodash.isset` does not exist as a standalone package, Lodash as a utility library offers functions like `_.isSet` which provide similar functionality to `is-set`. Lodash's `_.isSet` function checks if a value is classified as a Set object. The main difference is that Lodash offers a wide range of utility functions beyond checking for Sets, making it a more comprehensive solution for different types of data manipulations and checks.
The `is` package offers a wide range of type-check functions, including checks for Sets. Similar to `is-set`, it can be used to determine if a given value is a Set. However, `is` goes beyond just Sets, offering type checks for a variety of JavaScript data types and structures, making it a more versatile package if you need to perform multiple types of checks.
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
var isSet = require('is-set');
assert(!isSet(function () {}));
assert(!isSet(null));
assert(!isSet(function* () { yield 42; return Infinity; });
assert(!isSet(Symbol('foo')));
assert(!isSet(1n));
assert(!isSet(Object(1n)));
assert(!isSet(new Map()));
assert(!isSet(new WeakSet()));
assert(!isSet(new WeakMap()));
assert(isSet(new Set()));
class MySet extends Set {}
assert(isSet(new MySet()));
Simply clone the repo, npm install, and run npm test
v2.0.3 - 2024-03-08
9d26ac6node/install instead of node/run; use codecov action 3c913258fcc646eslint, @ljharb/eslint-config, object-inspect, safe-publish-latest, tape 91caa24130e57beslint, @ljharb/eslint-config, aud, auto-changelog, es5-shim, object-inspect, tape 4d75ee2052fdceeslint, @ljharb/eslint-config, auto-changelog, core-js, es5-shim, object-inspect, safe-publish-latest, tape eb317978c478baa0dac6b@ljharb/eslint-config, aud, es6-shim, object-inspect, tape 28d75a3eslint, @ljharb/eslint-config, aud, object-inspect, tape 7b2a4a7eslint, @ljharb/eslint-config, es5-shim, tape 20ce047e6e1796engines.node 9ed19afprepublishOnly script for npm 7+ 618f86176e890esideEffects flag e21859bFAQs
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
The npm package is-set receives a total of 17,838,471 weekly downloads. As such, is-set popularity was classified as popular.
We found that is-set demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Vite releases Rolldown-Vite, a Rust-based bundler preview offering faster builds and lower memory usage as a drop-in replacement for Vite.
Research
Security News
A malicious npm typosquat uses remote commands to silently delete entire project directories after a single mistyped install.
Research
Security News
Malicious PyPI package semantic-types steals Solana private keys via transitive dependency installs using monkey patching and blockchain exfiltration.