// Babel creates backwards compatible javascript transformations
module.exports = function (api) {
    if (api.env(['production', 'development'])) {
        return {
            exclude: 'node_modules/**',
            presets: [
                [
                    '@babel/preset-env',
                    {
                        targets: '> 0.25%, not dead',
                        modules: 'auto',
                        useBuiltIns: 'entry',
                        corejs: '3'
                    }
                ]
            ]
        };
    } else {
        return {
            exclude: 'node_modules/**',
            presets: [
                [
                    '@babel/preset-env',
                    {
                        targets: '> 0.25%, not dead',
                        modules: 'auto',
                        useBuiltIns: 'entry',
                        corejs: '3'
                    }
                ]
            ]
        };
    }
};