use of path.join everywhere

src/postinstall.js

@@ -1,29 +1,30 @@
 const fs = require('fs');
+const path = require('path');
 const ncp = require('ncp').ncp;
 
-const copy = (src,dest) => {
-    ncp(src,dest, function(err){
-        if(err)
+const copy = (src, dest) => {
+    ncp(src, dest, function (err) {
+        if (err)
             console.error(err);
         else
             console.log(`copied ${src} to ${dest}`);
     });
 };
 
-copy('./src/config.default.json','./config.example.json');
+copy(path.join('src', 'config.default.json'), 'config.example.json');
 
-if (!fs.existsSync('./data')) {
-    fs.mkdirSync('./data');
+if (!fs.existsSync('data')) {
+    fs.mkdirSync('data');
 
-    copy('./sample_data/home','./data');
+    copy(path.join('sample_data','home'), 'data');
 
-    const pad0 = n => ('0'+n).substr(-2);
+    const pad0 = n => ('0' + n).substr(-2);
 
     const datetime = new Date();
-    const dir = `./data/${datetime.getFullYear()}/${pad0(datetime.getMonth()+1)}/${pad0(datetime.getDate())}`;
+    const dir = path.join('data', datetime.getFullYear().toString(), pad0(datetime.getMonth() + 1), pad0(datetime.getDate()));
 
     if (!fs.existsSync(dir))
         fs.mkdirSync(dir, {recursive: true});
 
-    copy('./sample_data/article',dir);
+    copy(path.join('sample_data','article'), dir);
 }