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
v1.0.3 - 2018-11-02
#20node v8.1; v7.10, v6.11, v4.8; improve matrix; newer npm fails on older node ea5f23cnode v9.1, v8.9, v6.12; use nvm install-latest-npm; pin included builds to LTS. 697a0a1node v10.0, v9.11, v8.11, v6.14, v4.9 40045c5eslint, @ljharb/eslint-config, jscs, tape 08abc0dnode v11.1, v10.13, v8.12 bf8d275node v7.0, v6.9, v4.6; improve test matrix f813d86tape, jscs, eslint, @ljharb/eslint-config e4f9aeejscs, eslint, @ljharb/eslint-config 6c98d11jscs, eslint, @ljharb/eslint-config 8e3178ddecc4fejscs, eslint, @ljharb/eslint-config 514902anode v5.6, v4.3 f11f47cnpm run security 4adf82ctape, jscs, eslint, @ljharb/eslint-config f587aebeslint, @ljharb/eslint-config, nsp, tape 4f587bbnode v6.2, v5.11 36939c5eslint, @ljharb/eslint-config, nsp, tape d779cc8f50ce65tape, jscs, eslint, @ljharb/eslint-config 3025559tape, jscs, eslint, @ljharb/eslint-config 3b9ddeev5.8, v4.4 d4902cfc617dd3node v5.3 cdd2a61eslint, @ljharb/eslint-config, tape 7719172es5-shim, tape, nsp, eslint 6a5f82btape, eslint, @ljharb/eslint-config c896c1cpretest for running the linter. 83db117@ljharb/eslint-config, eslint 57fdc63node v7.2 aa3eacfnode v5.10 94ff6d7node v4.2 cdb1fb5Readme
#is-arguments 
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 17,593,016 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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