More examples

tshemsedinov · tshemsedinov · commit c7c00914b052 · 2017-11-06T20:46:17.000+02:00
diff --git a/JavaScript/6-logger.js b/JavaScript/6-logger.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const logger = level => {
+const logger = (level = 'info') => {
   const color = logger.colors[level] || logger.colors.info;
   return s => {
     const date = new Date().toISOString();
diff --git a/JavaScript/7-prototype.js b/JavaScript/7-prototype.js
@@ -1,10 +1,10 @@
 'use strict';
 
-function Logger(level) {
-  this.color = this.colors[level] || this.colors.info;
+function Logger(level = 'info') {
+  this.color = Logger.colors[level] || Logger.colors.info;
 }
 
-Logger.prototype.colors = {
+Logger.colors = {
   warning: '\x1b[1;33m',
   error: '\x1b[0;31m',
   info: '\x1b[1;37m'
diff --git a/JavaScript/8-class.js b/JavaScript/8-class.js
@@ -1,8 +1,8 @@
 'use strict';
 
 class Logger {
-  constructor(level) {
-    this.color = this.colors[level] || this.colors.info;
+  constructor(level = 'info') {
+    this.color = Logger.colors[level] || Logger.colors.info;
   }
 
   log(s) {
@@ -11,7 +11,7 @@ class Logger {
   }
 }
 
-Logger.prototype.colors = {
+Logger.colors = {
   warning: '\x1b[1;33m',
   error: '\x1b[0;31m',
   info: '\x1b[1;37m'
diff --git a/JavaScript/b-set.js b/JavaScript/b-set.js
@@ -8,6 +8,6 @@ class Rect {
 
 const p1 = { x: 10, y: 20, width: 50, height: 50 };
 Object.setPrototypeOf(p1, Rect.prototype);
-// p1.__proto__ = Rect.prototype;
+//p1.__proto__ = Rect.prototype;
 
 console.log(p1.toString());
diff --git a/JavaScript/d-get-set.js b/JavaScript/d-get-set.js
@@ -16,9 +16,15 @@ class Rect {
     this.width = l;
     this.height = l;
   }
+
+  get side() {
+    if (this.width !== this.height) throw new Error('not a Square');
+    return this.width;
+  }
 }
 
 const p1 = new Rect(10, 20, 50, 100);
+console.log(p1.side);
 console.log(p1.area);
 p1.side = 150;
 console.log(p1.area);
diff --git a/JavaScript/e-array.js b/JavaScript/e-array.js
@@ -0,0 +1,42 @@
+'use strict';
+
+const data = [
+  ['Marcus Aurelius', '212-04-26', 'Rome'],
+  ['Commodus Antoninus', '312-04-26', 'Rome'],
+  ['Victor Glushkov', '1923-08-24', 'Rostov on Don'],
+  ['Ibn Arabi', '1165-11-16', 'Murcia'],
+  ['Mao Zedong', '1893-12-26', 'Shaoshan'],
+  ['Rene Descartes', '1596-03-31', 'La Haye en Touraine']
+];
+
+class Person {
+  get name() {
+    return this[0];
+  }
+  get birth() {
+    return this[1];
+  }
+  get city() {
+    return this[2];
+  }
+  get age() {
+    const difference = new Date() - new Date(this.birth);
+    return Math.floor(difference / 31536000000);
+  }
+}
+
+const query = (person) => (
+  person.name !== '' &&
+  person.age > 18 &&
+  person.city === 'Rome'
+);
+
+console.dir(data);
+
+data.forEach(person => {
+  Object.setPrototypeOf(person, Person.prototype);
+  // person.__proto__ = Person.prototype
+});
+
+const res = data.filter(query);
+console.dir(res);

Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,8 @@`
`1`	`1`	`'use strict';`
`2`	`2`
`3`	`3`	`class Logger {`
`4`		`- constructor(level) {`
`5`		`- this.color = this.colors[level] \|\| this.colors.info;`
	`4`	`+ constructor(level = 'info') {`
	`5`	`+ this.color = Logger.colors[level] \|\| Logger.colors.info;`
`6`	`6`	`}`
`7`	`7`
`8`	`8`	`log(s) {`
`@@ -11,7 +11,7 @@ class Logger {`
`11`	`11`	`}`
`12`	`12`	`}`
`13`	`13`
`14`		`-Logger.prototype.colors = {`
	`14`	`+Logger.colors = {`
`15`	`15`	`warning: '\x1b[1;33m',`
`16`	`16`	`error: '\x1b[0;31m',`
`17`	`17`	`info: '\x1b[1;37m'`