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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to get the System uptime with PowerShell?
To get the Windows System uptime with PowerShell, we can use the CIM Instance method with class name Win32_OperatingSystem. Once you use the mentioned class there is a property called LastBootupTime which shows the date when the computer is last rebooted.ExampleGet-CimInstance -ClassName Win32_OperatingSystem | Select LastBootUpTimeOutputLastBootUpTime -------------- 9/29/2020 8:12:08 AMIf we check the datatype of the above output, it should be DateTime because of the output format.(Get-CimInstance -ClassName Win32_OperatingSystem).LastBootUpTime.Gettype()OutputIsPublic IsSerial Name BaseType -------- -------- ---- -------- True True DateTime System.ValueTypeWe need now the uptime of the system in Days-Hours-Minutes format. So we will compare ...
Read MoreDifference between Core Type and Shell Type Transformer
A transformer is a static electrical machine that is used to increase or decrease the voltage and current in an AC (Alternating Current) system. Based on construction, the transformers are broadly classified into following two types Core Type Transformer Shell Type Transformer In this tutorial, we will highlight all the major differences between a core type transformer and a shell type transformer. But before discussing the differences, let's understand the basics of core type and shell type transformer, so that it becomes easier to understand the differences between them. What is a Core Type Transformer? In the ...
Read MoreLocalStorage in ReactJS
In this article, we are going to see how to set and retrieve data in the localStorage memory of the user’s browser in a React application.LocalStorage is a web storage object to store the data on the user’s computer locally, which means the stored data is saved across browser sessions and the data stored has no expiration time.Syntax// To store data localStorage.setItem('Name', 'Rahul'); // To retrieve data localStorage.getItem('Name'); // To clear a specific item localStorage.removeItem('Name'); // To clear the whole data stored in localStorage localStorage.clear();Set, retrieve and remove data in localStorageIn this example, we will build a React ...
Read MoreHow to get the path of the currently executing script in PowerShell?
To get the full path of the script we need to use the $myInvocation command. This is an automatic variable and it is only invoked when the script or the function is executed.$MyInvocation.MyCommand.Path command is useful to get the full path of the script where it resides while $MyInvocation.MyCommand.Name is useful to get the name of the script. Example$mypath = $MyInvocation.MyCommand.Path Write-Output "Path of the script : $mypath"OutputPS C:\WINDOWS\system32> C:\Temp\TestPS.ps1 Path of the script : C:\Temp\TestPS.ps1Please note that we are running the above script from the System32 directory and the output path is C:\temp. To get the script directory, we can ...
Read MoreAlgorithms and Complexities
AlgorithmAn algorithm is a finite set of instructions, those if followed, accomplishes a particular task. It is not language specific, we can use any language and symbols to represent instructions.The criteria of an algorithmInput: Zero or more inputs are externally supplied to the algorithm.Output: At least one output is produced by an algorithm.Definiteness: Each instruction is clear and unambiguous.Finiteness: In an algorithm, it will be terminated after a finite number of steps for all different cases.Effectiveness: Each instruction must be very basic, so the purpose of those instructions must be very clear to us.Analysis of algorithmsAlgorithm analysis is an important part ...
Read MoreBluetooth Architecture
Bluetooth is a network technology that connects mobile devices wirelessly over a short range to form a personal area network (PAN). They use short-wavelength, ultra-high frequency (UHF) radio waves within the range 2.400 to 2.485 GHz, instead of RS-232 data cables of wired PANs.There are two types of Bluetooth networks −PiconetsScatternetsPiconetsPiconets are small Bluetooth networks, formed by at most 8 stations, one of which is the master node and the rest slave nodes (maximum of 7 slaves). Master node is the primary station that manages the small network. The slave stations are secondary stations that are synchronized with the primary ...
Read MoreHow to get the local Administrators group members using PowerShell?
To get the local Administrators group members using PowerShell, you need to use the GetLocalGroupMember command. This command is available in PowerShell version 5.1 onwards and the module for it is Microsoft.PowerShell.LocalAccounts. This module is not available in the 32-bit PowerShell version but on a 64-bit system.In the below example, we need to retrieve the Local Administrators group members, ExampleGet-LocalGroupMember -Group "Administrators"OutputObjectClass Name PrincipalSource ----------- ---- --------------- User LABDOMAIN\delta Group LABDOMAIN\Domain Admins User TEST1-WIN2K12\Administrator User ...
Read MoreHow to Convert Time to Decimal Hours /Minutes/ Seconds in Excel?
A decimal hour is a time that is represented as a number. In Excel, you may have needed to convert the given time to decimal values at times. If we try to do this task manually, then it can be a time-consuming process. We can use the faster approach mentioned in this article. We can solve this task using the formulas supported in Excel. Read this tutorial to learn how you can convert time to decimal time in Excel. Converting Time to Decimal Hours in Excel Here we will use the formula to get any one of the values, then ...
Read MoreWhat are the differences between Stored procedures and functions?
Following are the main differences between functions and procedures:FunctionsProceduresA function has a return type and returns a value.A procedure does not have a return type. But it returns values using the OUT parameters.You cannot use a function with Data Manipulation queries. Only Select queries are allowed in functions.You can use DML queries such as insert, update, select etc… with procedures.A function does not allow output parametersA procedure allows both input and output parameters.You cannot manage transactions inside a function.You can manage transactions inside a procedure.You cannot call stored procedures from a functionYou can call a function from a stored procedure.You ...
Read MoreHow to use UseFormControl() hook in Material UI?
In React MUI, managing form states or validating them is a big task. To solve this issue, we have the useFormControl() hook available in MUI. This hook allows to customize the state according to different project requirements, etc. In this article, we'll explore the usage of the UseFormControl() hook in the Material UI in React. useFormControl API The useFormControl API or hook returns the context value of the parent FormControl component. It gives an abstraction layer that allows to manage of the form state and validation of the given form controls. API returnable objects There are different useFormControl hook returns, ...
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