Namani Karthik

1590464580

Introduction To Tableau File Types | Tableau File Extensions

Tableau supports different types of files, and each has its unique file extensions. In Tableau, you can save your work in about eight different types of file extensions and folders. Tableau looks like a reasonably simple program. But a lot is going on under the hood. One of the ways that you can use Tableau to its full extent is to take advantage of different file types…

#tableau #big-data #data-science

What is GEEK

Buddha Community

Introduction To Tableau File Types | Tableau File Extensions

Namani Karthik

1590464580

Introduction To Tableau File Types | Tableau File Extensions

Tableau supports different types of files, and each has its unique file extensions. In Tableau, you can save your work in about eight different types of file extensions and folders. Tableau looks like a reasonably simple program. But a lot is going on under the hood. One of the ways that you can use Tableau to its full extent is to take advantage of different file types…

#tableau #big-data #data-science

I am Developer

1597559012

Multiple File Upload in Laravel 7, 6

in this post, i will show you easy steps for multiple file upload in laravel 7, 6.

As well as how to validate file type, size before uploading to database in laravel.

Laravel 7/6 Multiple File Upload

You can easily upload multiple file with validation in laravel application using the following steps:

  1. Download Laravel Fresh New Setup
  2. Setup Database Credentials
  3. Generate Migration & Model For File
  4. Make Route For File uploading
  5. Create File Controller & Methods
  6. Create Multiple File Blade View
  7. Run Development Server

https://www.tutsmake.com/laravel-6-multiple-file-upload-with-validation-example/

#laravel multiple file upload validation #multiple file upload in laravel 7 #multiple file upload in laravel 6 #upload multiple files laravel 7 #upload multiple files in laravel 6 #upload multiple files php laravel

Mikel  Okuneva

Mikel Okuneva

1604091600

Some Helpful Extensions When Dealing With Types in .NET

If you are writing reusable code, chances are high that you will write quite some code that deals with types, generics, and interfaces. Over the years, the collection of my helper extensions for that have grown. As some of my upcoming posts use them, I share them (also) for future reference.

1. Check if a Type Is Deriving From Another Type

Deriving types is a common practice. To some extent, you can use pattern matching. Sometimes, that isn’t enough, though (especially if you have a multi-level derivation path). This is when I use one of these two extensions:

Java

1

        public static bool IsDerivingFrom(this Type type, Type searchType)

2

        {

3

            if (type == null) throw new NullReferenceException();

4

5

            return

6

                type.BaseType != null &&

7

                (type.BaseType == searchType ||

8

                type.BaseType.IsDerivingFrom(searchType));

9

        }

10

11

        public static bool IsDerivingFromGenericType(this Type type, Type searchGenericType)

12

        {

13

            if (type == null) throw new ArgumentNullException(nameof(type));

14

            if (searchGenericType == null) throw new ArgumentNullException(nameof(searchGenericType));

15

16

            return

17

                type != typeof(object) &&

18

                (type.IsGenericType &&

19

                searchGenericType.GetGenericTypeDefinition() == searchGenericType ||

20

                IsDerivingFromGenericType(type.BaseType, searchGenericType));

21

        }

Update 1: Type.IsSubclassOf will give you the same result as IsDerivingFrom. The main purpose was (is) to use my implementation when having multiple levels of derivation and being able to debug the whole detection process.

2. Get Type of T From IEnumerable

Sometimes, one needs to know the item type of an IEnumerable. These two extensions will help you in this case:

Java

1

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Style", "IDE0060:Remove unused parameter", Justification = "Extension method")]

2

        public static Type GetItemType<T>(this IEnumerable<T> enumerable) => typeof(T);

3

4

        public static Type? GetItemType(this object enumerable)

5

            => enumerable == null ? null :

6

            (enumerable.GetType().GetInterface(typeof(IEnumerable<>).Name)?.GetGenericArguments()[0]);

3. Check if a Type Implements a Certain Interface

Interfaces are supposed to make the life of a developer easier. Like with the type derivation, sometimes we need to know if a type implements a certain interface. This extension answers the question for you:

Java

1

        public static bool ImplementsInterface(this Type? type, Type? @interface)

2

        {

3

            bool result = false;

4

5

            if (type == null || @interface == null)

6

                return result;

7

8

            var interfaces = type.GetInterfaces();

9

            if (@interface.IsGenericTypeDefinition)

10

            {

11

                foreach (var item in interfaces)

12

                {

13

                    if (item.IsConstructedGenericType && item.GetGenericTypeDefinition() == @interface)

14

                        result = true;

15

                }

16

            }

17

            else

18

            {

19

                foreach (var item in interfaces)

20

                {

21

                    if (item == @interface)

22

                        result = true;

23

                }

24

            }

25

26

            return result;

27

        }

Update 2: Type.IsAssignableFrom will also tell you if a type implements an interface. As for the IsDerivingFrom method, I wanted to be able to debug the detection, which is - besides from having an explicit implementation - the main reason for this method.

#web dev #mvvm #interface #types #type #assembly #extension methods #dev stories #helper #msicc

Arvel  Parker

Arvel Parker

1593156510

Basic Data Types in Python | Python Web Development For Beginners

At the end of 2019, Python is one of the fastest-growing programming languages. More than 10% of developers have opted for Python development.

In the programming world, Data types play an important role. Each Variable is stored in different data types and responsible for various functions. Python had two different objects, and They are mutable and immutable objects.

Table of Contents  hide

I Mutable objects

II Immutable objects

III Built-in data types in Python

Mutable objects

The Size and declared value and its sequence of the object can able to be modified called mutable objects.

Mutable Data Types are list, dict, set, byte array

Immutable objects

The Size and declared value and its sequence of the object can able to be modified.

Immutable data types are int, float, complex, String, tuples, bytes, and frozen sets.

id() and type() is used to know the Identity and data type of the object

a**=25+**85j

type**(a)**

output**:<class’complex’>**

b**={1:10,2:“Pinky”****}**

id**(b)**

output**:**238989244168

Built-in data types in Python

a**=str(“Hello python world”)****#str**

b**=int(18)****#int**

c**=float(20482.5)****#float**

d**=complex(5+85j)****#complex**

e**=list((“python”,“fast”,“growing”,“in”,2018))****#list**

f**=tuple((“python”,“easy”,“learning”))****#tuple**

g**=range(10)****#range**

h**=dict(name=“Vidu”,age=36)****#dict**

i**=set((“python”,“fast”,“growing”,“in”,2018))****#set**

j**=frozenset((“python”,“fast”,“growing”,“in”,2018))****#frozenset**

k**=bool(18)****#bool**

l**=bytes(8)****#bytes**

m**=bytearray(8)****#bytearray**

n**=memoryview(bytes(18))****#memoryview**

Numbers (int,Float,Complex)

Numbers are stored in numeric Types. when a number is assigned to a variable, Python creates Number objects.

#signed interger

age**=**18

print**(age)**

Output**:**18

Python supports 3 types of numeric data.

int (signed integers like 20, 2, 225, etc.)

float (float is used to store floating-point numbers like 9.8, 3.1444, 89.52, etc.)

complex (complex numbers like 8.94j, 4.0 + 7.3j, etc.)

A complex number contains an ordered pair, i.e., a + ib where a and b denote the real and imaginary parts respectively).

String

The string can be represented as the sequence of characters in the quotation marks. In python, to define strings we can use single, double, or triple quotes.

# String Handling

‘Hello Python’

#single (') Quoted String

“Hello Python”

# Double (") Quoted String

“”“Hello Python”“”

‘’‘Hello Python’‘’

# triple (‘’') (“”") Quoted String

In python, string handling is a straightforward task, and python provides various built-in functions and operators for representing strings.

The operator “+” is used to concatenate strings and “*” is used to repeat the string.

“Hello”+“python”

output**:****‘Hello python’**

"python "*****2

'Output : Python python ’

#python web development #data types in python #list of all python data types #python data types #python datatypes #python types #python variable type

Juan Corr

1603713809

Tableau Desktop Certified Associate Certification Exam Syllabus

Start your Preparation for Tableau Desktop Associate and become Desktop Associate certified with AnalyticsExam.com. Here you get online practice tests prepared and approved by Tableau certified experts based on their own certification exam experience. Here, you also get the detailed and regularly updated syllabus for Tableau Desktop Associate.
Tableau Desktop Associate practice tests provided by the AnalyticsExam.com is just one of the promising techniques of preparation for the Desktop Associate exam. This Desktop Associate practice tests are composed by a team of experienced professionals. Upgraded Desktop Associate practice questions will give you the useful experience of learning for the Tableau Desktop Associate exam. You can gain the Tableau Desktop Certified Associate certification on the first go with the help of the Desktop Associate practice questions.
If you are planning to prepare for Desktop Associate exam, but not sure how hard the exam is and you want to try out a sample test, you can take our Desktop Associate practice test. To help you assess your readiness, we’ve developed a set of Tableau Desktop Associate sample questions and assembled them into a free online test exam.
Getting that Tableau Desktop Associate certification is a great first step and these practice tests can help you toward a better score. Millions of aspirants have become certified with our practice tests. Give your preparation a new edge with AnalyticsExam.com practice tests.
Effective and dynamic self-preparation is very important for your success in your Tableau Desktop Associate certification exam. You therefore need to explore all options of preparation that are available to you. After studying all the resource materials, you still need to go through different practice tests to evaluate your knowledge base and skill set.
https://www.analyticsexam.com/tableau-desktop-associate-certification-exam-syllabus

#tableau desktop associate #tableau #tableau desktop associate exam #tableau desktop certified associate