Problem: Given a directory consisting of different file types, how to find all the files in the directory with the.txt extension? As a developer, you may need to prune the type of files present within a certain folder, i.e., list the files in a directory having a specific extension before performing any operation on them. … Read more
Fix: Prefix the Path String with “r” or Use Double Backslashes “//” or Use Single Forwardslash “\”
In this article, we will get an overview of the programming language JavaScript and we will learn how to see our code output and results when working with JavaScript. In short, the easiest and most convenient way to see our JavaScript output is to use the console.log() method which shows a message in our web … Read more
Annual Income The average annual income of a Crypto Trading Bot Developer is similar to algorithmic traders of $104,422 (source). However, due to the novelty of the industry, there’s little official data. If you assume an hourly rate of $50 and an annual 2000 hours worked, the annual income of a crypto trading bot developer … Read more
In Python, the equivalent of && (logical-and) in programming languages such as C++ or Java in an if-statement is and. Using && will raise a SyntaxError, so use and instead! Overview Problem: What is the equivalent of &&(logical-and) in Python? Example: Let’s have a look at the following example: Output: You will get the following … Read more
Annual Income The average annual income of a Firebase Developer is approximately $80,000 according to PayScale (source). Hourly Rate If you decide to go the route as a freelance Firebase Developer, you can expect to make between $25 and $50 per hour on Upwork (source). If you work for eight hours on a given day, … Read more
The Pandas DataFrame/Series has several methods related to plotting. Preparation Before any data manipulation can occur, four (4) new libraries will require installation. The Pandas library enables access to/from a DataFrame. The NumPy library supports multi-dimensional arrays and matrices in addition to a collection of mathematical functions. The Matplotlib library displays a visual graph of … Read more
The Pandas DataFrame/Series has several methods related to plotting. Preparation Before any data manipulation can occur, three (3) new libraries will require installation. The Pandas library enables access to/from a DataFrame. The Matplotlib library displays a visual graph of a plotted dataset. The Scipy library allows users to manipulate and visualize the data. To install … Read more
Annual Income The average annual income of a US-based Elasticsearch Developer is between $90,000 (25th percentile) to $139,000 (75th percentile) according to Ziprecruiter. Top earners can make up to $165,000 annually (source). Hourly Rate If you decide to go the route as a freelance Elasticsearch Developer, you can expect to make between $25 and $80 … Read more
[toc] Problem Statement: Reading from stdin in Python. Reading inputs from the user is one of the fundamental building blocks that we learn while learning any programming language. The output of most codes depends on the user’s inputs. Hence, in this article, we are going to learn how to read from stdin in Python. There … Read more
This article focuses on analyzing the coronavirus dataset using Python language. We are not using any of the Python data analysis libraries. Instead, we’ll use our raw Python skills to write a function, slicing, and indexing. Also, we’ll use Python arithmetic operators such as sum() and division. Finally, we’ll use a lambda expression to perform … Read more
Summary: Use the len(str) method to check whether the string is empty or not. If the len method returns 0 it implies that the string is empty. Otherwise it is not empty. Problem Statement: Given a string how to check if it is empty. Note: An empty string is a string that does not contain … Read more