[toc] Summary: The preferred approach to find the length of any given Python object is to use the len function and pass the object within the function as an argument. Python will then implicitly call the special __len__ method on the object that was passed. Problem Statement: Is arr.__len__() the preferred way to get the length of an array … Read more
Before we learn about the money, let’s get this question out of the way: What Is ZK? Let’s have a look at the definition from the official ZK website and the docs and Wikipedia: ZK is a UI framework that enables you to build amazing web and mobile applications without having to write JavaScript or … Read more
🛑 Attention: A notable follow-up project to SproutCore is Ember.js that has attracted much more recent interest. You may want to check out our developer’s guide and income opportunity of Ember.js. Before we learn about the money, let’s get this question out of the way: What Is SproutCore? Let’s have a look at the definition … Read more
Before we learn about the money, let’s get this question out of the way: What Is Flight PHP? Let’s have a look at the definition from the official Flight PHP website: Flight is a fast, simple, extensible framework for PHP. Flight enables you to quickly and easily build RESTful web applications. Now that you know … Read more
– Firstly, open the file in write mode by passing the file path and access mode “w” to the open() function.
– Next, we have to use the “for” loop to iterate the list. In each iteration, we will get a list item that we need to write in the file using the write() method.
– After iterating through the whole list, we need to ensure that we have closed the file. For that, we use the close() method.
This article shows you how to calculate the standard deviation of a given list of numerical values in Python. Definition and Problem Formulation The standard deviation is defined as the square root of the variance. In case you’ve attended your last statistics course a few years ago, let’s quickly recap the definition of variance: variance … Read more
Before we learn about the money, let’s get this question out of the way: What Is Wt? Let’s have a look at the definition from the official Wt website: Develop web applications in C++ Wt (pronounced “wee-tee”) is a web GUI library in modern C++. Quickly develop highly interactive web UIs with widgets, without having … Read more
Before we learn about the money, let’s get this question out of the way: What Is Grok? Let’s have a look at the definition from the official Grok website: Grok is a web application framework for Python developers. It is aimed at both beginners and very experienced web developers. Grok has an emphasis on agile … Read more
Before we learn about the money, let’s get this question out of the way: What Is Dancer2? Let’s have a look at the definition from the official Dancer2 website and the docs (highlights by me): Dancer2 is a micro-web framework, written in the Perl programming language, and is modeled after a Ruby web application framework … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to count the occurrences of a selected List element in Python. To make it more fun, we have the following running scenario: A Teacher from Orchard Elementary would like a script created for the 4th-grade students called “Count-Me“. She would like this script to … Read more
In Python, the numpy.diff() function calculates the n-th discrete difference between adjacent values in an array along with a given axis. For higher-order differences calculation, numpy.diff() runs recursively to the output of the previous execution. Here is the argument table of numpy.diff(): If it sounds great to you, please continue reading, and you will fully … Read more
This post is part 4 of our Smart Contract Security Series: Ownership Exploit Private Variable Exploit Reentrancy Attack tx.origin Phishing Attack Denial of Service Attack Storage Collision Attack Randomness Attack Replay Attack In this post, we discuss phishing attacks due to tx.origin. In the regular phishing of a website, phishing begins with a phony email … Read more