is-arguments
Advanced tools
Package description
The is-arguments npm package is designed to check if a given value is an arguments object. This can be particularly useful in functions where you need to differentiate between an array and the arguments object, or when trying to ensure compatibility across different JavaScript environments where the typeof operator might not suffice.
Check if a value is an arguments object
This feature allows you to check if a given value is an arguments object. It's particularly useful in scenarios where you need to distinguish between an array and the arguments object passed to a function.
const isArguments = require('is-arguments');
function example() {
console.log(isArguments(arguments)); // true
console.log(isArguments([1, 2, 3])); // false
}
example();Similar to is-arguments, isarray checks if a given value is an array. While is-arguments focuses on identifying arguments objects, isarray focuses on arrays. Both packages serve to identify specific data structures, making them useful in different but somewhat related scenarios.
Part of the Lodash library, lodash.isarguments provides a similar functionality to is-arguments by checking if a value is an arguments object. The main difference is that lodash.isarguments comes as part of the larger Lodash utility library, which offers a wide range of functions for different types of data manipulation and checking.
Changelog
v1.1.1 - 2021-08-05
node/install instead of node/run; use codecov action dd28b3087e489ce2c2c6eeslint, @ljharb/eslint-config, aud, tape b9ae62b504c0a5has-tostringtag to behave correctly in the presence of symbol shams dc29e52auto-changelog, eslint, tape a966d25eslint, @ljharb/eslint-config, tape 1218944prepublishOnly script for npm 7+ 757dbeecall-bind b206f05b89b2f1Readme
Is this an arguments object? It's a harder question than you think.
var isArguments = require('is-arguments');
var assert = require('assert');
assert.equal(isArguments({}), false);
assert.equal(isArguments([]), false);
(function () {
assert.equal(isArguments(arguments), true);
}())
If you have modified an actual arguments object by giving it a Symbol.toStringTag property, then this package will return false.
Simply clone the repo, npm install, and run npm test
FAQs
Is this an arguments object? It's a harder question than you think.
The npm package is-arguments receives a total of 18,907,808 weekly downloads. As such, is-arguments popularity was classified as popular.
We found that is-arguments 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.
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