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Python comes with a variety of built-in data structures, capable of storing different types of data. A Python dictionary is one such data structure that can store data in the form of key-value pairs - conceptually similar to a map. The values in a Python dictionary can be accessed using...
Nicholas Samuel
Basic data types in Python allow us to store a single value under a symbolic name. This roughly follows the mathematical notation of variables. In a way, a name is assigned to a value, so you don't need to remember the actual value, nor its address in computer memory, just...
Dimitrije Stamenic
A character counter is a handy UI feature that displays the remaining number of characters a user can input in a text field - if a text field is bound to a relatively small input size (such as Twitter's limit on 280 characters per tweet). This feature is commonly used...
Joel Olawanle
An Array in JavaScript is a standardized, built-in object used to store multiple objects under the same name. In simple terms, you can look at the Array object as an array in any other programming language. It is essentially a class that encapsulates an array (an ordered list of values)...
The forEach() method is one of many that can be used to loop through the contents of an array and show each element successively. It has the distinct qualities that set it apart from other techniques of iterating over arrays, meaning it's up to you to select which method to...
Data helps us tell compelling stories, data visualization is the graphical representation of information and data using graphic elements such as charts, graphs, and so on. There are a few libraries out there that can help us produce beautiful outcomes with relatively little work and Chart.js is one of...
Graphs are one of the most useful data structures. They can be used to model practically everything - object relations and networks being the most common ones. An image can be represented as a grid-like graph of pixels, and sentences can be represented as graphs of words. Graphs are used...
Anđela Niketić
Originating from mathematics, graphs are now widely used data structures in Computer Science. One of the first problems we encounter when constructing any algorithm regarding Graph processing or traversal is how we represent the graph and then, how to traverse that representation. Graph traversal is not a trivial problem, and...
Graphs in Python can be represented in several different ways. The most notable ones are adjacency matrices, adjacency lists, and lists of edges. In this guide, we'll cover all of them. When implementing graphs, you can switch between these types of representations at your leisure. First of all, we'll quickly...
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