file1 = "index.js";
file2 = "old/index.js";
out1 = "newws.txt";
out2 = "oldws.txt";
fs = require('fs');
text1 = fs.readFileSync(file1, {encoding:"utf8"});
text2 = fs.readFileSync(file2, {encoding:"utf8"});
fs.writeFileSync(out1, text1.replace(/\s+/g, ''));
fs.writeFileSync(out2, text1.replace(/\s+/g, ''));