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

Usage

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"]
});