@babel/plugin-syntax-optional-chaining

note

Syntax only

It's unlikely you want to use this plugin directly as it only enables Babel to parse this syntax. Instead, use plugin-transform-optional-chaining to both parse and transform this syntax.

Installation

npm

npm install --save-dev @babel/plugin-syntax-optional-chaining

Yarn

yarn add --dev @babel/plugin-syntax-optional-chaining

pnpm

pnpm add --save-dev @babel/plugin-syntax-optional-chaining

Usage

With a configuration file (Recommended)

babel.config.json

{
  "plugins": ["@babel/plugin-syntax-optional-chaining"]
}

Via CLI

Shell

babel --plugins @babel/plugin-syntax-optional-chaining script.js

Via Node API

JavaScript

require("@babel/core").transformSync("code", {
  plugins: ["@babel/plugin-syntax-optional-chaining"]
});