babel/packages/babel-plugin-syntax-optional-catch-binding/README.md

@babel/plugin-syntax-optional-catch-binding

This plugin allows Babel to parse optional catch bindings.

Example

Syntax

try {
  throw 0;
} catch {
  doSomethingWhichDoesntCareAboutTheValueThrown();
  console.log("Yay, code executes!");
}

Installation

npm install --save-dev @babel/plugin-syntax-optional-catch-binding

Usage

Via .babelrc (Recommended)

.babelrc

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

Via CLI

babel --plugins @babel/plugin-syntax-optional-catch-binding script.js

Via Node API

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

References

• Proposal: Optional Catch Binding for ECMAScript