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How to delete rows from pandas dataframe?
Scripts & Utilities

To delete a row or n rows from a pandas dataframe you can use following commandDataFrame.drop(labels=None, axis=0, index=None, columns=None, level=None, inplace=False, errors='rais...

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How to show errors and handling errors in php
Web Development

Now a days, PHP is the most popular server-side web programming language, so it’s important to know how to resolve any errors that may occur when PHP code is executed.Here, we will...

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How to create a solver in python
Scripts & Utilities

Python scipy provides a good number of optimizers/solvers. You can use these optimizers to solve various non-linear and linear equations. However, sometimes things might get tricky...

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How to Update Node.js to Latest Version (Linux, Ub...
Other - Software Development

As with so many open-source technologies, Node.js is a fast-moving project. Minor updates come out every few weeks to boost stability and security among all version branches.Method...

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How to use the implode function in PHP
Web Development

In PHP, the implode() method joins array elements and outputs them as a single string. This is useful when we need to create one string out of a set of array values.The f...

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How to migrate wordpress website files and databas...
Web Development

Moving websites between hosts is a big challenge for all site owners. With a WordPress site, we have to move all our plugins, themes, and the database. Once they are relocated, the...

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How to install a wordpress theme (via Theme Direct...
Web Development

Quality WordPress themes are designed to make people’s lives easier, but for some, the trickiest part is getting them installed and operational. We need a web host before anything...

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How to Set Up Command Aliases in Linux/Ubuntu/Debi...
Other - Software Development

Aliases are one of the most time-saving devices. An alias is a way to make a complicated command or set of commands simple. This is best demonstrated by an example.In web deve...

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How to Remove Element from an Array: JavaScript
Web Development

Removing elements from a JavaScript array is a common programming paradigm that developers often run into. As with a lot of things JavaScript, this isn’t as simple as it probably s...

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How to upload a file (or files) with ASP.NET MVC
Web Development

To upload a file or set of files with ASP.NET MVC we first need to understand what happens under the hood. First, ASP.NET MVC is different since we don't get to use ASP.NET Server...

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How to prevent SQL injection in PHP?
Web Development

SQL injection usually occurs when you ask a user for input, like their username/userid, and instead of a name/id, the user gives you an SQL statement that you will unknowingly run...

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Best practices when making a Yii2 Extension
Web Development

What is the best way to create a extension for Yii2?How to register the extension with the application and how to organize views, controllers and models within the extension? ...

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How to undo the most recent commits in Git?
Web Development

If you accidentally committed wrong files to Git, but you don’t want to push the commit to the server yet. Don't worry, you can still undo those commits from the repo by follo...

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