babel-plugin-optimize-starts-with

Transform startsWith into raw char code tests

Example

In

if ('test'.startsWith('te')) {
  // true
}

Out

if ('test'.charCodeAt(0) === 116&& 'test'.charCodeAt(1) === 101) {
  // true
}

Installation

npm install --save-dev babel-plugin-babel-plugin-optimize-starts-with

Usage

Via .babelrc (Recommended)

.babelrc

{
      "plugins": ["babel-plugin-optimize-starts-with"]
}

Via CLI

babel --plugins babel-plugin-optimize-starts-with script.js

Via Node API

require("babel-core").transform("code", {
      plugins: ["babel-plugin-optimize-starts-with"]
});