Ecmascript 20215/27/2023 The second argument is the pattern’s replacement. Given the first and second argument, replaceAll() returns a new string that will be the source string with all instances of the pattern swapped for the replacement. The source string is not affected. The replaceAll() method takes a string or regular expression, called the pattern, as its first argument. ![]() With the upcoming ECMAScript 2022 release just around the corner, let’s take a look at the new JavaScript language features introduced in ECMAScript 2021 The JavaScript language specification, also known as ECMAScript or ES, is a living document, modified every year in response to evolving needs. While JavaScript started as a scripting language, the ECMAScript specification overview notes that the language “is now used for the full spectrum of programming tasks in many different environments and scales.” Because of this, JavaScript is better understood as a fully featured general-purpose programming language. ![]() ECMAScript 2021 highlights include replaceAll(), promise.any(), AggregateError, and new logical assignment operators, for starters.
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