ECMAScript practice

• initialize

ndenv install v6.2.2
ndenv local v6.2.2
ndenv rehash

npm install --save-dev babel-cli babel-preset-es2015 eslint
mkdir {src,dist}

• add .babelrc

• add .eslintrc

• add npm-script build and watch

• You can write src/app.js. After that, You can do "npm run build". Then dist/app.js will be built.

• You can execute "node dist/app.js"

es2015

• この資料でes2015関連参考になる http://yoshiko-pg.github.io/slides/20160512-frontend-biz/
  • stage0,1までは入れてもいいかもね

eslint

references for parserOptions, etc. http://eslint.org/docs/user-guide/configuring#specifying-parser-options

execute src scripts

ソースを直接ビルドして実行する

% yarn babel-node src/app.js