Top 100+ Prototype Javascript Framework Interview Questions And Answers
Question 1. What Is Prototype?
Answer :
Prototype is a JavaScript framework that is utilized in dynamic internet packages.
It is a namespace and a module that is used to manipulate HTML bureaucracy.
It is also a JavaScript Library.
Question 2. Who Is The Developer Of Prototype?
Answer :
Sam Stephenson is the developer of Prototype.
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Question three. What Are The Features Of Prototype?
Answer :
The capabilities of Prototype are:
Extends DOM factors.
Powerful Ajax functions.
Does no longer offer widgets.
Advanced assist for event management.
It isn't a entire utility improvement framework.
Built-in support for sophistication-style OOP including inheritance.
Question four. What Is Underscore () Method In Prototype String Method?
Answer :
underscore () approach: This approach is used to converts a String into a chain of phrases separated by an underscore.
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Question 5. What Is Inspect () Method In Prototype String Method?
Answer :
inspect () method: This technique is used to returns a debug-oriented model of the string.
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Question 6. What Is Empty () Method In Prototype Element Method?
Answer :
empty () technique is used to test whether or not the element is empty or not.
Question 7. What Is Templates In Prototype?
Answer :
Templates:
It is used for formatting group of similar items.
It is also used to provide formatted output for these gadgets.
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Question eight. What Are The Steps To Create The Formatted Output In Prototype?
Answer :
The steps to create the formatted output are:
Step 1: Create a template.
Step 2: Defining real values.
Step three: Mapping Keys and replacing Values.
Question nine. What Is Include () Method In Prototype?
Answer :
include technique: This approach is used to decide whether or not the cost is included in the range or not.
If the price is protected, then returns true otherwise returns false.
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Question 10. What Is $a () Method In Prototype?
Answer :
$A () approach: This technique is used to converts the single argument it gets into an array item.
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Question 11. What Is $w () Method In Prototype?
Answer :
The $w () method is used to splits a string into an array.
Here, all whitespace are handled as delimiters.
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Question 12. What Is Ajax In Prototype?
Answer :
AJAX stands for Asynchronous JavaScript and XML.
It is a method that's used for growing quicker, better and extra interactive internet programs.
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Question 13. What Is Date.Tojson () In Prototype?
Answer :
The Date.ToJSON () method is used to convert the date right into a JSON string.
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Question 14. What Are The Ways To Construct A Hash Instance In Prototype?
Answer :
Two approaches to assemble a Hash instance are:
By using new JavaScript key-word.
By using $H(Prototype Utility characteristic).
Question 15. What Is The Use Of Periodical Executor Object?
Answer :
Periodical Executor item: It is used to execute a characteristic typically after a sure time period.
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Question 16. What Is The Major Advantage Of Periodical Executor?
Answer :
The essential advantage of Periodical Executor is: Periodical Executor shields you against more than one parallel executions of the callback function.
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Question 17. What Is The Syntax Of $r Utility Function In Prototype?
Answer :
The syntax of $R application characteristic is: $R(start, end[, exclusive = false]);
Example:
$R (1, 10).Look into ();
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Question 18. What Are The Ajax Methods Available In Prototype?
Answer :
The AJAX strategies to be had in Prototype are:
Ajax Options
Ajax.PeriodicalUpdater ()
Ajax. Request ()
Ajax. Responders ()
Ajax. Response ()
Ajax. Updater ()
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Question 19. Name Some Callbacks That Are Not Implemented By All Browsers?
Answer :
Callbacks that are not carried out through all browsers are:
On Loaded
On Loading
On Interactive
On Uninitialized
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Question 20. What Are The Methods Provided By Json For Encoding In Prototype?
Answer :
The techniques supplied through JSON for Encoding are:
Number.ToJSON ()
String.ToJSON ()
Array.ToJSON ()
Hash.ToJSON ()
Date.ToJSON ()
Object.ToJSON ()
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Question 21. What Are The Features Of Json (javascript Object Notation)?
Answer :
The capabilities of JSON are:
JSON is a light-weight records-interchange layout.
Easy to study and write for human beings.
Easy to parse and generate for machines.
Based on JavaScript Programming Language.
Completely language unbiased.
Question 22. What Is The Use Of $h Method In Prototype?
Answer :
$H technique: This technique is used to convert object into enumerable Hash item.
Syntax: $H ([obj])
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Question 23. What Will Be The Output Of The Following Code Snippet?
Answer :
var anyObject = ;
['foo', 'Tuto', 'rial'].Each(characteristic(name, index)
this[name] = index;
, anyObject);
anyObject;
Output: foo: 0, Tuto: 1, rial: 2
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Question 24. What Is The Syntax Of Pluck () Method In Prototype?
Answer :
The syntax of pluck () approach is: Iterator. Pluck (belongings Name);
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Question 25. What Is The Use Of Is Hash () Method In Prototype?
Answer :
is Hash() method: Returns real if item is an instance of the Hash elegance, Otherwise returns fake.
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Question 26. What Are The Form Methods Available In Prototype?
Answer :
The shape methods available in Prototype are:
Disabled ()
Enable ()
Find First Element ()
Focus First Element ()
Getelements ()
Get Inputs ()
Request ()
Reset ()
Serialize ()
Serialize Elements ()
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Question 27. What Is The Use Of Json () Method In Prototype?
Answer :
JSON () method: It is used to check the string is valid JSON with the assist of everyday expressions.
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