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Question ID 14918

You are developing a shared library to format information. The library contains a method
named _private.
The _private method must never be called directly from outside of the shared library.
You need to implement an API for the shared library.
How should you complete the relevant code? (Develop the solution by selecting the
required code segments and arranging them in the correct order. You may not need all of
the code segments.)

Option A

* Here there is a basic example: // our constructor function Person(name, age){ this.name = name; this.age = age; }; // prototype assignment Person.prototype = (function(){ // we have a scope for private stuff // created once and not for every instance function toString(){ return this.name + " is " + this.age; }; // create the prototype and return them return { // never forget the constructor ... constructor:Person, // "magic" toString method toString:function(){ // call private toString method return toString.call(this); } }; })(); * Example: You can simulate private methods like this: function Restaurant() { } Restaurant.prototype = (function() { var private_stuff = function() { // Private code here }; return { constructor:Restaurant, use_restroom:function() { private_stuff(); } }; })(); var r = new Restaurant(); // This will work: r.use_restroom(); // This will cause an error: r.private_stuff();

Correct Answer A
Explanation


Question ID 14919

You are developing an HTML5 web application that displays stock information.
The application loads information from a web service by using AJAX.
The following code defines a Stock object and loads stock data.

 

You need to implement the loadStock function.
Which code segment should you use?

Option A

Option A

Option B

Option B

Option C

Option C

Option D

Option D

Correct Answer A
Explanation

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