React: Building Modern Web Applications

Working with strings

ES6 provides new ways of creating strings and adds new properties to global String object and to its instances to make working with strings easier. Strings in JavaScript lacked features and capabilities when compared with programming languages such as Python and Ruby therefore ES6 enhanced strings to change that.

Before we get into new string features lets revise JavaScript's internal character encoding and escape sequences. In the Unicode character set every character is represented by a base 10 decimal number called a code point. A code unit is a fixed number of bits in memory to store a code point. An encoding schema determines the length of code unit. A code unit is 8 bits if the UTF-8 encoding schema is used or 16 bits ...