JSFiddle - React, Tailwind, and code Playground

by WilsonPage

JavaScript

// object declaration
var myObject = {
    a: 'one',
    b: 'two',
    c: 'three'
}

// testing for properties
alert( myObject.hasOwnProperty('a') );// will alert 'true'
alert( myObject.hasOwnProperty('d') );// will alert 'false'