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5to6-codemod's Introduction

5to6-codemod

A collection of codemods that allow you to transform your js code from ES5 to ES6 using jscodeshift.

Usage

  1. npm install -g jscodeshift
  2. npm install 5to6-codemod
  3. jscodeshift -t node_modules/5to6-codemod/transforms/[transform].js [files]
  4. Review changes via git diff. Keep what you want, throw it out if you don't. Magic!

Transforms

  • amd - Transforms AMD style modules to ES6 import/export
  • cjs - Transforms CommonJS style require() calls to ES6 import statements
  • no-strict - Removes "use strict" statements
  • exports - Move CommonJS style module.exports statements to ES6 export statements
  • let - Replace all var calls to use let
  • simple-arrow - Replace all function expressions with a body of a sole return statement into arrow functions

Known issues

  • Currently loses comments if directly before the require() statement.
  • require() calls in single var statements get reordered, and moved before the single var after conversion to import.
  • Can't automagically figure out when you want to use import * as varName.
  • End-of-line comments also missing in many situations
  • simple-arrow loses comments in the function expression body

5to6-codemod's People

Contributors

akloboucnik avatar amilajack avatar ewnd9 avatar frodosamoa avatar jamischarles avatar nmn avatar nolanlawson avatar rmacklin avatar slorber avatar xjamundx avatar

Watchers

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