Why object literals in JavaScript are cool

Dmitri Pavlutin on javascript, ecmascript-2015, es6, object literal, object initializer, prototype, super |

Before ECMAScript 2015 object literals (also named object initializers) in JavaScript were quite elementary. It was possible to define 2 types of properties: Pairs of property names and related values { name1: value1 } Getters { get name(){..} } and setters { set name(val){..} } for computed property values Sadly, the object literal possibilities match into a single example: Try in JS Bin var myObject = { myString: 'value 1', get myNumber(… Continue reading

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Inheritance in JavaScript: understanding the constructor property

Dmitri Pavlutin on javascript, constructor, prototype |

JavaScript has an interesting inheritance mechanism: prototypal. Most of the starting JavaScript developers have hard time understanding it, as well as I had. All types in JavaScript (except the null and undefined values) have a constructor property, which is a part of the inheritance. For example: var num = 150; num.constructor === Number // => true var obj = {}; str.constructor === Object // => true var reg = /\d/g;… Continue reading

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