ES6 for Humans: The Latest Standard of JavaScript: ES2015 and Beyond

© Deepak Grover and Hanu Kunduru 2017

Deepak Grover and Hanu Prateek Kunduru, ES6 for Humans, https://doi.org/10.1007/978-1-4842-2623-0_6

6. Symbols in ES6

Deepak Grover¹  and Hanu Prateek Kunduru²

(1)Delhi, India

(2)Seattle, Washington, USA

Since way back in 1996, around the time when JavaScript was first standardized and ECMA attempted to carve out a standard specification, there have been five primitive data types in JavaScript : Boolean, Number, String, Undefined, and Null where each type represents a value. But now ES6 introduces a brand new primitive data type - Symbol. In this chapter, we will go over, in detail, this new primitive type and its applications.

Symbols

Symbols represent a unique value and at its heart, a symbol is a unique token ...