Javascript Question

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JavaScript and C# Mastery Quiz

Test your knowledge of JavaScript, C#, and SQL with this comprehensive quiz designed for developers and tech enthusiasts. Whether you're brushing up on your skills or preparing for an interview, this quiz covers essential concepts and common pitfalls in programming.

Multiple choice and checkbox questions
Real-world scenarios and coding practices
Insights into key programming languages

18 Questions4 MinutesCreated by DebuggingCoder321

What is the result of !( '5' == 5 )?

True

False

Null

What is the difference between == and === operators in JavaScript?

== compares only values while === compares both values and types

== compares both values and types while === compares only values

Both operators are identical

None of the above.

Which one is not a Property of $.Ajax()

Success

Complete

Fail

BeforeSend

In html, there is a ul element with multiple li elements, Which one is correct to apply red color on 3rd li ?

$('ul child:3 li').css("color", "red");

$('ul li:3').css("color", "red");

$('ul').find('li:3').css("color", "red");

$('ul li:eq(3)').css("color", "red");

var arr= [1,2,3];

arr[10]=4;

var arrLength=arr.length;

What value assign in the arrLength?

var str ="abc";
console.log(str.indexOf('B'))

What value print in the console?

-1

If "Product" table contain 100 rows? Then which EntityFramwork Query throw error?

_db.Product.Single();

_db.Product.First();

_db.Product.Take(1000);

_db.Product.Skip(1000);

In C# which statement is not correct?

ReadOnly is a compile constant.

ReadOnly cannot be declared inside the method.

Const can be declared inside the method.

The value of Readonly field can be changed.

In C# which statement is not correct?

Abstract class can not have constructor

Abstract methods can not be private

Abstract class can have static methods

Abstract class cannot be a sealed

In C# which statement is not correct?

App.Use may call next middleware component in the pipeline

App.Run will never call subsequent middleware

Both are correct

Both are not correct

In C# which code statement throw error?

"12-3-5-3-10000".IndexOf("SD");

"12-3-5-3-10000".Split("-");

"12-3-5-3-10000".Replace("-","NULL")

"12-3-5-3-10000".Contains("NULL")

    [Route("{type}/{library}/{version}/{file?}/{renew?}")]
    public ActionResult Index2(EFileType type,
                              string library,
                              string version,
                              string file = null,
                              ECacheType renew = ECacheType.cache)
    {
        return View("Index");
    }

Which URL will not hit this Action Method?

Http://localhost:52392/2/lib1/ver1/file1/1

Http://localhost:52392/2/lib1/ver1/file1/1/

All URL hit the Action Method

public async Task PerformMultipleOperationsAsync()
{
var tasks = new Task[]
{
Operation1Async(), // Take 2 seconds
Operation2Async(), // Take 2 seconds
Operation3Async(), // Take 2 seconds
};

try
{
await Task.WhenAll(tasks);
}
catch (AggregateException ae)
{

}
}

What will be the execution time of method "PerformMultipleOperationsAsync"?

6 Seconds

4 Seconds

2 Seconds

Error

In MSSQL Database which one is not a valid clauses?

LIMIT

NOLOCK

Fetch

OPENJSON

In MSSQL server Which query returns records from the "Product" table where "Name" column contains Null value?

Select * From Product Where Name = NULL

Select * From Product Where Name Is NULL

Select * From Product Where ISNull(Name,'') = NuLL

Select * From Product Where Name =''

In MSSQL which statement is not correct?

The DELETE command is used to delete particular records from a table.

The TRUNCATE command is used to delete the complete data from the table.

Delete is a DDL command.

TRUNCATE does not activate the triggers applied on the table.

In SQL management studio, for a Query which Tool help us to create indexes on tables

Database Engine Tuning Adviser

SQL Profiler

SQL Query Editor

Customize

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