Code files

Chapter03/working-with-files/null-byte-remover.js

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+'use strict'
+
+const fs = require('fs')
+const path = require('path')
+const cwd = process.cwd()
+const bytes = fs.readFileSync(path.join(cwd, 'file.dat'))
+
+const clean = bytes.filter(n => n)
+fs.writeFileSync(path.join(cwd, 'clean.dat'), clean)
+
+fs.appendFileSync(
+  path.join(cwd, 'log.txt'),
+  (new Date) + ' ' + (bytes.length - clean.length) + ' bytes removed\n'
+)
+