ECMAScript 2018 Releases, Improves Regular Expressions

ECMAScript 2018 (ninth edition of JS) was officially released at the end of June, bringing many new features. ECMAScript 2018 was released in February this year, and the TC39 Technical Committee meets every two months to discuss the current status of the draft.

ECMAScript 2018 mainly contains content:

• Asynchronous iterators: Native support for iterating over asynchronously fetched data in JavaScript.
• Object  Rest/Spread Properties
• Promise.prototype.finally
• Template Literal: Cancel Escape-Sequenzen Limit
• Regular expression:
  • Support s (dotAll) mode
  • Unicode Property Escape
  • Support for post- assertion (Lookbehind Assertions)
  • Named capture group