Object-has-property

Determine if an Object has required property or properties

Information

NPM Package: Object-has-property

Description: Determine if an Object passed in first argument has required property passed in second argument. There is possibility to pass an Array of properties in second argument to check for multiple properties.

Returns False if first argument is not an Object

Returns False if second argument is not an Array nor String

Returns False if type of any properties is Undefined

Returns True if property is found in Object.prototype

Usage

Install

$ npm install --save object-has-property

Examples

var has = require('object-has-property');
 
var a = {
  foo: 'bar'
};
 
console.log(has(a, 'foo'));

Outputs true

var has = require('object-has-property');
 
var a = {
  foo: 'bar'
};
 
var required = [
  'foo',
  'missing'
];
 
console.log(has(a, required));

Outputs false because property missing is not found

var has = require('object-has-property');
 
var a = {
  foo: 'bar',
  notmissing: 'wohoo'
};
 
var required = [
  'foo',
  'notmissing'
];
 
console.log(has(a, required));

Outputs true

var has = require('object-has-property');
 
var a = {
  foo: 'bar',
  notmissing: undefined
};
 
var required = [
  'foo',
  'notmissing'
];
 
console.log(has(a, required));

Outputs false because notmissing is undefined

var has = require('object-has-property');
 
console.log(has(Object.prototype, 'hasOwnProperty'));

Outputs true

LICENSE MIT