Sign Up

Continue with Facebook
Continue with Google
Continue with Twitter
or use


Have an account? Sign In Now

Sign In

Continue with Facebook
Continue with Google
Continue with Twitter
or use

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

WhatisWhatis

WhatisWhatis Logo WhatisWhatis Logo

WhatisWhatis Navigation

  • Blog
  • Write For Us
  • About Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • All Questions
  • Polls
  • Followers
  • FAQs
  • Add A Group
  • Add A Post
  • Blog
  • Write For Us
  • About Us
Home/Website Development

WhatisWhatis Latest Questions

annashipman
  • 2
annashipman
Asked: February 19, 2023In: Technology, Website Development

How can you secure the code of your software or app?

  • 2

How do you prevent unauthorized editing or alteration of code for your built software and applications? Any suitable mechanism for software security?

cybersecuritydevelopmentsecure the code of your softwaresoftwaresoftware security
  • 0 Answers
  • 29 Views
instasolsofttech
  • 0
instasolsofttech
Asked: July 23, 2022In: Technology, Website Development

What are the 5 essential skills every web developer should have?

  • 0

We want to hire a web developer for our business. Can you please tell me what are the skills required for a website developer?

skillsskills required for a website developerweb developerweb developer skillsweb developmentwebsite developer
  • 0 Answers
  • 45 Views
Singasani Akshay
  • 1
Singasani Akshay
Asked: February 27, 2022In: Technology, Website Development

How To Fix python typeerror: a bytes-like object is required, not ‘str’?

  • 1

What is a typeerror a bytes-like object is required, not ‘str’? How can you solve a python type error a bytes-like object is required not str?

a bytes like object is required not strErrorObjectPythonpython typeerror: a bytes-like object is required not 'str'typeerror: a bytes-like object is required not 'str'
  1. Best Answer
    Singasani Akshay
    Added an answer on February 27, 2022 at 3:21 pm

    Typeerrors are susceptible to Python. Usually, you will come across typeerror: a bytes-like object is required, not 'str' when you want to apply a particular function to a non-supported value. When it fails to iterate a number, the error message gets displayed. Know more: What Are The Reasons To LeaRead more

    Typeerrors are susceptible to Python. Usually, you will come across typeerror: a bytes-like object is required, not ‘str’ when you want to apply a particular function to a non-supported value. When it fails to iterate a number, the error message gets displayed.

    Know more:

    • What Are The Reasons To Learn Python?

    Meaning of a bytes-like object is required not str code:

    The simple error code gives us a hint that our chosen value doesn’t support a function for which we are applying codes. It also makes it clear that we are using a value as a string but it should be treated as a bytes-like object. In case you don’t know, a bytes-like object is always stored in the bytes data type format. They can never be string, and if any coder or program tries to use them as a string, the error message will immediately pop up.

    Using a text file can help you get relief from such a problem. In case you are opening binary files, the problem will only multiply even more.

    How can you explain in python typeerror: a bytes-like object is required, not ‘str’ with an example?

    We will understand the error with the following case where;

    With open(“vegetables.txt”, “vb”) as file:

             vegetables = file.readlines()

    for v in vegetables:

             if “Tomato” in v:

                      print(v)

    It will open the file vegetables.txt and treat vegetables as a variable.

    The ‘vegetables’—variable mistakenly enter an iterable object in the .txt file.

    Let’s check if each line contains tomatoes or not.

    Use the following code:

    Traceback (most recent call last):

      File “main.py”, line 7, in <module>

             if “tomato” in v:

    Instantly, it will show an error.

    How to fix python typeerror: a bytes-like object is required, not ‘str’?

    The above example clearly shows that when you try to initiate a .txt file and try to launch it as a binary file, it may lead to erroneous results.

    Binaries can never be treated as text. They are just a series of binary codes or bytes.

    You can also type the following codes:

    With open(“vegetables.txt”, “v”) as file: 

    In the above code, there is no code ‘b’ after V. So, it will automatically get opened in the text read mode. Always open a text file in text R-mode or read mode. Never try to read a binary file in text mode and vice versa; or else it could continue to display a lot of error codes and alerts.  

    Can you explain what is typeError in Python programming?

    It is an automated programming code you notice because of an incorrect file operation between binary mode and text mode. Binary files always read data and return as bytes object they can never return as a string. 

    In Conclusion:

    If you are looking for 100% relief from these nagging error alerts on the Python workspace, you have to transform an HTTP request inside the string to bytes. You can either prefix the string with b. Once you put b, it will continue to convert the string codes to a series of bytes.

    Another option is to use .encode at the end. Encoding or by typing string.encode() will help you transform a string into bytes. At the same time, you can even use its reverse coding: string.decode() to change bytes to string. You can practice it. It’s fun. 

    See less
    • 0
    • Share
      Share
      • Share onFacebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  • 1 Answer
  • 77 Views
Singasani Akshay
  • 1
Singasani Akshay
Asked: February 27, 2022In: Technology, Website Development

How To Fix Object Reference Not Set To An Instance of An Object?

  • 1

How to fix object reference not set to an instance of an object? What does unity nullreferenceexception: object reference not set to an instance of an object mean?

.NET.NET frameworkObjectobject reference not set to an instance of an objectobject reference not set to an instance of an object c# unitysystem.nullreferenceexception: 'object reference not set to an instance of an object.'unity nullreferenceexception: object reference not set to an instance of an object
  1. Best Answer
    Singasani Akshay
    Added an answer on February 27, 2022 at 1:30 pm

    The Object reference not set to an instance of an object is a common error that developers notice on .NET app or frameworks. Though plenty of causes can result in such errors, we’ll discuss here some major reasons for the occurrence of such types of errors.  Usually, the error gets displayed when yoRead more

    The Object reference not set to an instance of an object is a common error that developers notice on .NET app or frameworks. Though plenty of causes can result in such errors, we’ll discuss here some major reasons for the occurrence of such types of errors. 

    Usually, the error gets displayed when you try to obtain an object that hasn’t been instantiated yet. You have to ensure that your system doesn’t encounter runtime errors or else, it can lead to a data breach. During any such instance, remote hackers can manipulate your data and even stall your server. 

    Fixing object reference not set to an instance of an object c# unity (Basics And Introductory Explanation)

    It usually occurs as soon as you get NullReferenceException. When you work on .NET, you have to understand value types and reference types. Value types store the data while reference types don’t hold the data. Under reference types, they hold a specific reference point where object can be stored in memory. 

    Know more:

    • Top 100+ .net Framework Interview Questions and Answers

    For example, a web page link can serve as a reference type while Date/Time serve as value types. A variable can be stored under a reference types. When a reference doesn’t go to a specific object, it’s nullreference. Many of .Net App errors emanate from nullreference. 

    How to fix system.nullreferenceexception: ‘object reference not set to an instance of an object’.

    This code may generate a nullreferenceexception. But its variable ‘text’ has to be null in it. 

    public void MyMethod(string text) 

    { 

      //Throws exception if text == null 

      if (text.ToUpper() == “Hello World”) 

      { 

           //do something 

      } 

    } 

    You may also get null reference exceptions when any type of object is null. If you haven’t initialized SqlCommand object, it may lead to a serious SQL query error. A null string can be serious in SqlCommand, unless you get it fixed at the earliest. 

    SqlCommand command = null; 

    //Exception! Object reference not set to an instance of an object 

    command.ExecuteNonQuery();

    How to Utilise Null Coalescing to Avoid NullReferenceExceptions?

    You can use the null coalescing feature—?? operator. It comes with a default value for a previously null-valued variable. 

    You can utilize null coalescing using this code: 

    List<string> values = null; 

    foreach (var value in values ?? new List<string>()) 

    { 

        Console.WriteLine(value); 

    } 

    The errors may originate due to settings, API-type values or database calls. 

    Top 3 tips to prevent system.nullreferenceexception: object reference not set to an instance of an object 

    • Assign particular values to each variable.
    • If the variable is null, process such codes accordingly.
    • Use [?] operator wherever possible

    In Conclusion:

    The object reference not set to an instance of an object is one of the commonest errors within .NET framework or app. You can use if-conditional statement to understand whether your variable has a specific reference. Such problems occur frequently under .NET framework. 

    All reference types within C# come with a null value. However, some data types like int and Boolean don’t have null values if you don’t define them appropriately. You must check all variables before assigning codes to them. You can also ensure that you check if-else statement for null values. 

    See less
    • 0
    • Share
      Share
      • Share onFacebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  • 1 Answer
  • 51 Views
Singasani Akshay
  • 1
Singasani Akshay
Asked: February 7, 2022In: Technology, Website Development

Why is caching used to increase read performance?

  • 1

Define Caching. What purpose does it serve? Explain the types of cache. Explain Cached data and types of cache memory. Why is caching used to increase read performance?

CacheCache MemoryCached DataCachingRAMTypes of cachetypes of cache memorywhat is cached dataWhat Is Cachingwhy is caching used to increase read performance?
  1. Best Answer
    Singasani Akshay
    Added an answer on February 7, 2022 at 7:14 am

    In simple terminology, caching refers to a specialized technical method through which data gets stored inside the RAM on your laptop or desktop. Once the data gets stored in RAM, it becomes faster for the PC to retrieve the same within nanoseconds. Such data gets stored as sectors. All computers comRead more

    In simple terminology, caching refers to a specialized technical method through which data gets stored inside the RAM on your laptop or desktop. Once the data gets stored in RAM, it becomes faster for the PC to retrieve the same within nanoseconds.

    Such data gets stored as sectors. All computers come with RAID feature or Redundant Array of Independent Disks. It is efficient in storing necessary data depending upon the frequency of a user’s preference of going to a particular site or using an app.

    What Is Caching?

    We all know that RAM comes with a defined storage limit. It can be either 512-MB or 1GB or 4GB or more. If a user does a lot of activity on their computer, it won’t be always possible for RAM to predict the user’s behaviour. In such cases, caching technology makes use of the bloom filter to add it to its database. 

    Whenever a new record is entered into the data set, multiple hash functions are enabled to perform the same helping user to get back to the most frequently used section online.

    In recent times, the modern system comes with an effective data storage system enabling the optimum utilization of both primary and secondary storage systems for getting back a particular datum. Let’s read, Why is caching used to increase read performance?

    Why is caching used to increase read performance?

    Caching is primarily used to get rid of any latency involved within the storage system. It helps in expediting the system and at the same time improves its performance. The faster turnout time makes users happy and delighted prompting them to return to you for buying their future goods or services. 

    Caching analyses the predictable behaviour of the user and immediately asks its system to come up with relevant data or answers already stored in the database server.

    Take the case of an e-commerce website. Suppose you have to add new images to a particular section, which is below the product page. If you scroll through to that section, it takes a lot of time.

    You can instead read directly from the memory through caching and perform necessary edits without going into your database server. This is the primary reason why is caching used to increase read performance.

    What is cache memory?

    It is a practical chip-based computer part that helps in getting data back from the PC’s memory without affecting other parts. It works as a temporary storage location from where the system can easily get back any data. Cache memory is an integral part of the CPU as always.

    Cache memory is integrated into the system either through a chipset within the CPU or a separate chipset. Whichever way, you use it, cache memory makes your system work faster and more efficiently.

    What are the Types of cache memory?

    Primary Cache Memory (L1 Cache)

    It is positioned adjacent to the CPU. It has a direct link to the CPU core and is called primary cache or Level 1 Cache. It processes all data at a superfast speed but the component itself is very small and included within the processor chip.

    Secondary Cache Memory (L2 Cache)

    You will see it on a different chipset adjacent to the PC’s motherboard. It relatively holds a greater quantity of data than L1. You can also get it embedded in the CPU. It works continuously even when there is too much data traffic on the bus.

    What Is Cached Data?

    Cached data refers to the full content that gets stored on your laptop after you come out of any website. Software developers and website designers always make use of cache data to improve the quality of their website traffic and the online experience of the visitors.

    As we all know that customers don’t have time; if your website doesn’t get opened within the first three seconds, they will shift to your competitor’s site. Using cache data can help in such cases. It primarily helps in expediting the website by enhancing the speed of your device. 

    The system usually stores some bits/ bytes; the next time you come online, it automatically lets users to that website depending upon their predictable analysis and user behaviour.

    What are the Types of Cache?

    In the above section, we analysed types of cache memory. Now, we will take a look at types of cache.

    Import Cache

    It mainly concentrates on the suffixes. When a particular suffix is entered, the cache automatically fills the remaining part without any user’s input.

    For example, if you regularly visit Google, then your system will auto-fill Google. Com or .in depends upon your frequency of use. Usually, the directory server takes care of the import cache.

    Entry Cache

    It’s another useful cache mapping technique, which studies the recently accessed items first on the client’s system. It records everything within the directory server and fetches relevant records based on the size you specify. 

    In Conclusion:

    It’s now clear that in today’s fast-paced environment, caches and cookies are important. Every website today wants to enable relevant caches and cookies enabled on their website to analyse users’ behaviour. Based on users’ intent, caching helps in generating relevant results.

    See less
    • 0
    • Share
      Share
      • Share onFacebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  • 1 Answer
  • 54 Views
1 2 … 14

Sidebar

Ask A Question
Add A Post
Create A New Group

Categories

Our Figures

  • Questions 1k
  • Answers 1k
  • Posts 1k
  • Comments 88
  • Best Answers 1k
  • Users 7k

Explore

  • Home
  • All Questions
  • Polls
  • Followers
  • FAQs
  • Add A Group
  • Add A Post

Footer

About Us

WhatisWhatis.com is trying to become one of the best question and answer platforms out there, which will help you establish your community and connect with other people.

Our Pages

  • About Us
  • Blog
  • Contact Us
  • Frequently Asked Questions (FAQs)
  • Privacy Policy
  • Questions
  • Write For Us To Submit A Guest Post Article on Technology, Education, Health, Apps, Gadgets, IoT, AI, Business, Digital Marketing and More!

Subscribe For Us

DMCA.com Protection Status

Our Feeds

Sitemap

RSS Feeds

Follow Us Here

Akshay
Online
Need help? Chat via Whatsapp

© 2019 - 2022 All rights reserved By WhatisWhatis.com

Need Help? Chat with us
Start a Conversation
Hi! Click one of our member below to chat on Whatsapp
The team typically replies in a few minutes.
Akshay
Need Any Help?