is-primitive
Advanced tools
Package description
The is-primitive npm package is used to check if a given value is a JavaScript primitive. A primitive in JavaScript is data that is not an object and has no methods. In JavaScript, there are 7 primitive data types: string, number, bigint, boolean, undefined, symbol, and null. This package provides a simple and straightforward way to determine if a value belongs to one of these types.
Check if a value is a primitive
This feature allows you to check if a value is a primitive type. The function returns true for primitive values and false for objects (including arrays and functions).
const isPrimitive = require('is-primitive');
console.log(isPrimitive(42)); // true
console.log(isPrimitive('hello')); // true
console.log(isPrimitive(false)); // true
console.log(isPrimitive({})); // false
console.log(isPrimitive([])); // false
console.log(isPrimitive(function() {})); // falseThe 'is' package provides a comprehensive set of type-check functions, including checks for primitives. It offers more functionality than is-primitive by including type checks for objects, arrays, regexes, functions, and more.
The 'type-check' package allows you to check the types of JavaScript values with an extended type syntax. It is more complex and feature-rich compared to is-primitive, as it supports custom type definitions and more intricate type checking.
The 'is-type-of' package has a similar purpose to is-primitive but includes additional checks for specific JavaScript types and structures, such as streams, buffers, and errors, making it more versatile for certain applications.
Readme
Returns
trueif the value is a primitive.
npm i is-primitive --save
Install dev dependencies.
npm i -d && npm test
var isPrimitive = require('is-primitive');
isPrimitive('abc');
//=> true
isPrimitive(42);
//=> true
isPrimitive(false);
//=> true
isPrimitive(true);
//=> true
isPrimitive({});
//=> false
isPrimitive([]);
//=> false
isPrimitive(function(){});
//=> false
Jon Schlinkert
Copyright (c) 2014-2015 Jon Schlinkert
Released under the MIT license
This file was generated by verb-cli on March 16, 2015.
FAQs
Returns `true` if the value is a primitive.
We found that is-primitive demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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