babel/packages/babel-plugin-transform-strict-mode/README.md

@babel/plugin-transform-strict-mode

This plugin places a 'use strict'; directive at the top of all files to enable strict mode

See our website @babel/plugin-transform-strict-mode for more information.

Install

Using npm:

npm install --save @babel/plugin-transform-strict-mode

or using yarn:

yarn add --save @babel/plugin-transform-strict-mode