const fs = require('fs'); let VAL_DEF = null; let getValDefine = function() { if (!(VAL_DEF)) { let data = fs.readFileSync(__dirname.slice(0, __dirname.length - 30) + '/public/web/rpt_value_define.js', 'utf8', 'r'); eval(data + ' ; VAL_DEF = JV;'); } return VAL_DEF; } module.exports = getValDefine();