About a year ago, I wrote an article about the new features that JavaScript would incorporate in its ES2021 specification.
Today, in June 2021, these features, along with others, have been approved. In this article, I elaborate and detail what I wrote more than a year ago, but with the addition of the final features that have been approved.
Index
String.prototype.replaceAll()
Promise.any() and AggregateError
WeakRefs and FinalizationRegistry
Logical assignment operators
Numeric separators
String.prototype.replaceAll()
String.prototype.replaceAll() replace all instances of a substring in a string with another string value, without using a global regexp.
Until now, the most common way of doing this was to use a global regexp.
Consider the following code where we use a regular expression to replace the “+” character with an empty character:
