webpack.config.js

var path = require("path");
var webpack=require("webpack");

module.exports = {
    entry: [
        'webpack/hot/dev-server',
        'webpack-dev-server/client?http://localhost:8080/',
        path.resolve(__dirname, 'app/index.js')
    ],
    output: {
        path: path.resolve(__dirname, 'public'),
        filename: 'bundle.js'
    },
    module: {
        loaders: [
            {
                test: /\.js$/,
                loaders: ['react-hot','babel'],
                exclude:path.resolve('_dirname','node_modules')
            },
            {
                test:/\.css/,
                loader:'style!css'
            },
            {
                test:/\.less/,
                loader:'style!css!less'
            }
        ]
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoErrorsPlugin()
    ]
};