Wk-notes-01-10-codemod

A Confusion

nodemon is a js lib used for node that watch the files change and reload.

'Codemods' are scripts used to rewrite other scripts.

Codemod

An advanced find-and-replace and a better one than 'sed'.

jscodeshift

Batch javascript code manipulating providing its ast. A wrapper of recast (a AST-to-AST tool)

// transform-script.js
export default (fileInfo, api) => {
  const j = api.jscodeshift;

  const root = j(fileInfo.source)

  return root.find(j.CallExpression, {
      callee: {
        type: 'MemberExpression',
        object: { type: 'Identifier', name: 'console' },
      },
    }
  )
  .remove()
  .toSource();
};