freeCodeCamp/curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-object-properties-with-dot-notation.russian.md

id, title, challengeType, videoUrl, forumTopicId, localeTitle

id	title	challengeType	videoUrl	forumTopicId	localeTitle
56533eb9ac21ba0edf2244c7	Accessing Object Properties with Dot Notation	1	https://scrimba.com/c/cGryJs8	16164	Доступ к объектным свойствам с нотами Dot

Description

There are two ways to access the properties of an object: dot notation (.) and bracket notation ([]), similar to an array. Dot notation is what you use when you know the name of the property you're trying to access ahead of time. Here is a sample of using dot notation (.) to read an object's property:

var myObj = {
  prop1: "val1",
  prop2: "val2"
};
var prop1val = myObj.prop1; // val1
var prop2val = myObj.prop2; // val2

Instructions

Прочитайте значения свойств testObj с использованием точечной нотации. Установите переменную hatValue равное свойству объекта hat и установить переменную shirtValue равной свойству объекта shirt .

Tests

tests:
  - text: <code>hatValue</code> should be a string
    testString: assert(typeof hatValue === 'string' );
  - text: The value of <code>hatValue</code> should be <code>"ballcap"</code>
    testString: assert(hatValue === 'ballcap' );
  - text: <code>shirtValue</code> should be a string
    testString: assert(typeof shirtValue === 'string' );
  - text: The value of <code>shirtValue</code> should be <code>"jersey"</code>
    testString: assert(shirtValue === 'jersey' );
  - text: You should use dot notation twice
    testString: assert(code.match(/testObj\.\w+/g).length > 1);

Challenge Seed

// Setup
var testObj = {
  "hat": "ballcap",
  "shirt": "jersey",
  "shoes": "cleats"
};

// Only change code below this line

var hatValue = testObj;      // Change this line
var shirtValue = testObj;    // Change this line

After Tests

(function(a,b) { return "hatValue = '" + a + "', shirtValue = '" + b + "'"; })(hatValue,shirtValue);

Solution

var testObj = {
  "hat": "ballcap",
  "shirt": "jersey",
  "shoes": "cleats"
};

var hatValue = testObj.hat;
var shirtValue = testObj.shirt;