Code style

Author: tshemsedinov

1-extract-metadata/filter-metaprogramming.js

@@ -36,18 +36,18 @@ let conditions = {
 //
 function filter(names, conditions) {
   let operations = {
-    length:   (s,v) => s.length >= v[0] && s.length <= v[1],
-    contains: (s,v) => s.indexOf(v) > -1,
-    starts:   (s,v) => s.indexOf(v) === 0,
-    ends:     (s,v) => s.slice(-v.length) === v,
-    not:      (s,v) => !check(s,v)
+    length:   (s, v) => s.length >= v[0] && s.length <= v[1],
+    contains: (s, v) => s.indexOf(v) > -1,
+    starts:   (s, v) => s.indexOf(v) === 0,
+    ends:     (s, v) => s.slice(-v.length) === v,
+    not:      (s, v) => !check(s,v)
   };
   function check(s, conditions) {
     let valid = true;
     for (let key in conditions) valid &= operations[key](s, conditions[key]);
     return valid;
   }
-  return names.filter((s) => check(s, conditions));
+  return names.filter(s => check(s, conditions));
 }
 
 // Execution

2-level-up/metadata.js

@@ -1,13 +1,13 @@
 {
   counters: { success: 0, error: 0, wrong: 0 },
   tasks: [
-    { interval: '5s', get: 'http://127.0.0.1/api/method1.json', expect: 'OK', save: 'file1.json' },
+    { interval: '5s', get: 'http://127.0.0.1/api/method1.json', save: 'file1.json' },
     { interval: '8s', get: 'http://127.0.0.1/api/method2.json', put: 'http://127.0.0.1/api/method4.json', save: 'file2.json' },
-    { interval: '7s', get: 'http://127.0.0.1/api/method3.json', expect: 'Done', post: 'http://127.0.0.1/api/method5.json' },
-    { interval: '4s', load: 'file1.json', expect: 'OK', put: 'http://127.0.0.1/api/method6.json' },
+    { interval: '7s', get: 'http://127.0.0.1/api/method3.json', post: 'http://127.0.0.1/api/method5.json' },
+    { interval: '4s', load: 'file1.json', put: 'http://127.0.0.1/api/method6.json' },
     { interval: '9s', load: 'file2.json', post: 'http://127.0.0.1/api/method7.json', save: 'file1.json' },
     { interval: '3s', load: 'file1.json', save: 'file3.json' },
   ],
   error: (err, request) => console.log('Error'),
-  success: (err, request) => test.counters.success++
+  success: (err, request) => counters.success++
 }

2-level-up/metametaprogramming.js

@@ -1,7 +1,8 @@
 'use strict';
 
-let fs = require('fs'),
-    request = require('request');
+global.api = {};
+api.fs = require('fs'),
+api.request = require('request');
 
 // Parse duration to seconds
 // Example: duration('1d 10h 7m 13s')
@@ -41,13 +42,13 @@ function iterate(tasks) {
   // Metamodel configuration metadata
   //
   let sources = {
-    get:  request.get,
-    load: fs.createReadStream
+    get:  api.request.get,
+    load: api.fs.createReadStream
   };
   let destinations = {
-    save: fs.createWriteStream,
-    post: request.post,
-    put:  request.put
+    save: api.fs.createWriteStream,
+    post: api.request.post,
+    put:  api.request.put
   };
 
   // Metamodel logic

2-level-up/metaprogramming.js

@@ -1,15 +1,16 @@
 'use strict';
 
-var fs = require('fs'),
-    request = require('request');
+global.api = {};
+api.fs = require('fs'),
+api.request = require('request');
 
 // Parse duration to seconds
 // Example: duration('1d 10h 7m 13s')
 //
 function duration(s) {
-  var result = 0;
+  let result = 0;
   if (typeof(s) === 'string') {
-    var days    = s.match(/(\d+)\s*d/),
+    let days    = s.match(/(\d+)\s*d/),
         hours   = s.match(/(\d+)\s*h/),
         minutes = s.match(/(\d+)\s*m/),
         seconds = s.match(/(\d+)\s*s/);
@@ -24,13 +25,13 @@ function duration(s) {
 
 // Metadata
 //
-var tasks = [
+let tasks = [
   { interval: 5000, get: 'http://127.0.0.1/api/method1.json', save: 'file1.json' },
   { interval: '8s', get: 'http://127.0.0.1/api/method2.json', put: 'http://127.0.0.1/api/method4.json', save: 'file2.json' },
   { interval: '7s', get: 'http://127.0.0.1/api/method3.json', post: 'http://127.0.0.1/api/method5.json' },
   { interval: '4s', load: 'file1.json', put: 'http://127.0.0.1/api/method6.json' },
   { interval: '9s', load: 'file2.json', post: 'http://127.0.0.1/api/method7.json', save: 'file1.json' },
-  { interval: '3s', load: 'file1.json', save: 'file3.json' },
+  { interval: '3s', load: 'file1.json', save: 'file3.json' }
 ];
 
 // Metamodel
@@ -39,15 +40,15 @@ function iterate(tasks) {
   function closureTask(task) {
     return () => {
       console.dir(task);
-      var source;
-      if (task.get)  source = request.get(task.get);
-      if (task.load) source = fs.createReadStream(task.load);
-      if (task.save) source.pipe(fs.createWriteStream(task.save));
-      if (task.post) source.pipe(request.post(task.post));
-      if (task.put)  source.pipe(request.put(task.put));
+      let source;
+      if (task.get)  source = api.request.get(task.get);
+      if (task.load) source = api.fs.createReadStream(task.load);
+      if (task.save) source.pipe(api.fs.createWriteStream(task.save));
+      if (task.post) source.pipe(api.request.post(task.post));
+      if (task.put)  source.pipe(api.request.put(task.put));
     };
   }
-  for (var i = 0; i < tasks.length; i++) {
+  for (let i = 0; i < tasks.length; i++) {
     setInterval(closureTask(tasks[i]), duration(tasks[i].interval));
   }
 }