has
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Package description
The 'has' npm package is a utility module that provides a function to check if an object has a property with a given key. It is a safer way to check for properties than the built-in JavaScript 'in' operator or property access, as it doesn't check the prototype chain and avoids potential issues with objects that have modified prototypes or lack a prototype altogether.
Check for own property
This feature allows you to check if an object has a specific own property. It returns true if the property exists directly on the object, and false otherwise.
const has = require('has');
const obj = { a: 1 };
console.log(has(obj, 'a')); // true
console.log(has(obj, 'b')); // falseLodash's 'has' function is similar to 'has' in that it checks if a path is a direct property of an object. However, lodash.has also allows checking for deep properties using a dot or array path notation, which 'has' does not support.
This package provides functionality similar to 'has' by checking if an object contains a certain property. The difference is mainly in the implementation and the specific API provided by the package.
Readme
Object.prototype.hasOwnProperty.call shortcut
npm install --save has
var has = require('has');
has({}, 'hasOwnProperty'); // false
has(Object.prototype, 'hasOwnProperty'); // true
FAQs
Object.prototype.hasOwnProperty.call shortcut
The npm package has receives a total of 14,714,016 weekly downloads. As such, has popularity was classified as popular.
We found that has demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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