55 results for: arrays
Examine the 10 key PHP functions I use frequently
PHP never ceases to surprise me with its built-in capabilities. These are a few of the functions I find most fascinating. 1. Levenshtein This function uses the Levenshtein algorithm to calculate the disparity or "distance" between two text strings. Named after its creator, Vladimir Levenshtein, it measures how identical two words or…
Category : Php 17-10-2023 by Silvia Mazzetta
Mastering array sorting in JavaScript: a guide to the sort() function
In this article, I will explain the usage and potential of the sort() function in JavaScript. What does the sort() function do? The sort() function allows you to sort the elements of an array object. It can sort the elements in either the default ascending order or according to a custom sorting…
Category : Javascript 29-05-2023 by Janeth Kent
JavaScript Arrow functions: What they are and how to use them
In this article we are going to see what they are and how to use JavaScript Arrow Functions, a new feature introduced with the ES6 standard (ECMAScript 6). What are Arrow Functions Arrow Functions are a new syntax for defining anonymous functions in JavaScript in a more concise way. Being an abbreviated…
Category : Javascript 30-08-2021 by Janeth Kent
Request data with prompt in JavaScript
After having published several articles about how to manipulate arrays and dates, today I will publish a post that some of you will find too basic and others will find it useful to get you started in the world of JavaScript programming. So, let them be read to the taste…
Category : Javascript 01-06-2021 by Janeth Kent
Flattening arrays in JavaScript
When we are handling arrays that are arrays or have multiple dimensions it can be very useful to know how to flatten arrays in JavaScript. That is to say, to move all the elements to a single dimension. This simplifies things like traversing the elements or being able to dump…
Category : Javascript 26-05-2023 by Janeth Kent
Top JavaScript libraries and frameworks part 1
JavaScript libraries and frameworks make it easy to develop websites and applications with a wide variety of features and functionality, all with dynamic, flexible and engaging features. According to a 2020 StackOverflow survey, JavaScript remains the most widely used programming language (for the eighth year), with 67.7% of respondents using it. Its…
Category : Javascript 06-05-2021 by Janeth Kent
Looping through a matrix with JavaScript
We were already talking about how to multiply arrays in JavaScript and we realised that we had not explained something as simple as traversing an array with Javascript. So we couldn't let the time pass and we have started working to explain you how to do this task. The first thing…
Category : Javascript 03-05-2021 by Janeth Kent
How to multiply matrices in JavaScript
It may seem strange to want to know how to multiply matrices in JavaScript. But we will see some examples where it is useful to know how to perform this operation and how useful it is when handling coordinates as matrices, which we will see in a following article. But let's…
Category : Javascript 30-04-2021 by Janeth Kent
JavaScript: Spread and Rest operators
In today’s article we are going to talk about one of the features of the ES6 version(ECMAScript 2015) of JavaScript which is Spread operator as well as Rest operator. These features may be very useful when developing and working with front-end frameworks. We will explain how you can use it in…
Category : Javascript 05-04-2021 by
HTTP Cookies: how they work and how to use them
Today we are going to write about the way to store data in a browser, why websites use cookies and how they work in detail. Continue reading to find out how to implement and manage them - if you're looking for code! Understanding HTTP COOKIES - What are they? Cookies and other types…
Category : Programming 27-11-2020 by
The most popular Array Sorting Algorithms In PHP
There are many ways to sort an array in PHP, the easiest being to use the sort() function built into PHP. This sort function is quick but has it's limitations, especially when sorting things like dates as PHP usually guesses which value is higher than the other and can produce…
Category : Php 25-08-2020 by Luigi Nori
How to clone objects in JavaScript
Primitive and referenced values (objects) behave very differently when we want to make a copy of them. Primitive values Let's suppose a variable name that has a primitive value associated with it (number, string, boolean, undefined and null). If we make a copy of this variable name to another variable name2, any…
Category : Javascript 11-05-2021 by Luigi Nori
All the javascript functions and methods to manipulate arrays
This article will show that the prominent JavaScript array functions are .map(), .filter(), and .reduce(), and will then go through examples of instances in which .every() and .some() would save computing power over the more prominent solutions. You will learn helpful methods in JavaScript Array, an array is one of the…
Category : Javascript 10-08-2020 by Luigi Nori
Is JavaScript good for machine learning?
One of the things you always hear when you are talking to someone related to the M.L. world is that, one must learn Python because the vast majority of the major libraries are in that technology. You're probably right, but I chose JavaScript as the metal of my sword and…
Category : Javascript 16-06-2020 by Silvia Mazzetta
First steps into JavaScript – a practical guide
For those who are new to web development, surely the amount of new terminology can sometimes be discouraging. But when it comes to learning JS, some of the first new concepts you definitively should wrap your head around is the Document Object Model and what it implies. To keep it simple…
Category : Javascript 26-10-2021 by Iveta Karailievova
Java Design Pattern: Strategy Pattern
One of the most popular patterns is the Strategy Pattern. It is also one of the easiest patterns. It is a member of the behavioral patterns family, it has the duty of managing algorithms, relations and responsibility among classes. The GoF defines it as follow: It defines a series of encapsulated algorithms…
Category : Java 13-09-2019 by Alessio Mungelli
Java Sorting Algorithm: Selection Sort
Today we are going to analyze a sorting algorithm that is not very efficient but often used in various fields. We are talking abou the Selection Sort. Let's have a look. Intuition The idea behind it is to divide the array to sort into two sub-arrays: the first that contains the sorted data…
Category : Java 31-03-2023 by Alessio Mungelli
Java Sorting Algorithm: Bubble Sort
Programming, the need to order the collections of data or objects that must then be manipulated often arises. Ordering a list can be useful in cases where you have to do very quick searches. We will see later on how to maintain an ordered list is useful to carry out dichotomous…
Category : Java 15-12-2019 by Alessio Mungelli
Java Sorting Algorithms: Merge Sort
Today we are going to analyze one of the most used sorting algorithms: the Merge Sort. It is part of the Divide and Conquer family, just like the Quick Sort. Merge Sort offers a better performance despite of the Quick Sort since its complexity remains O(n log n) keeping performances. It is also called "algorithm by fusion" The main defect of the Merge…
Category : Java 14-12-2019 by Alessio Mungelli
Java Sorting Algorithms: Quick Sort
Welcome back to this overview about the Java world! Today, we are going to talk about a renowned sorting algorithm: the Quick Sort. The Quick Sort is not very suitable for educational purposes because its implementation may not be trivial, but at the performance level it offers some advantages that are not indifferent, unlike…
Category : Java 14-12-2019 by Alessio Mungelli
Implementing Quicksort algorithm in Javascript
We've been wanting to write an article about sorting algorithms for some time now because sometimes we forget how useful they can be when we want to optimize our code. So yesterday we played with the quicksort algorithm in Javascript (one of the most efficient when you have to order arrays).…
Category : Javascript 16-08-2019 by Janeth Kent
Javascript Arrays - Immutable functions
In these years, we have been playing with React, which has allowed us to deeply explore Javascript and concepts such as functional programming. This has led us to study concepts such as pure functions and immutability (both primary basis for libraries like Redux) and try to put them into practice whenever…
Category : Javascript 09-08-2019 by Janeth Kent
10 Javascript tips and tricks you should know
Javascript is the most widely used language in fullstack development thanks to the boom in recent years in libraries and frameworks such as NodeJs (backend) and React/Angular/Vue (frontend). However, regardless of which one you use to develop, there are a number of tricks and tips common to all of them…
Category : Javascript 08-08-2019 by Janeth Kent
7 Useful tricks for writing more concise and performant JavaScript
When we started writing about JavaScript, we created a list of every time-saving trick we discovered in the code of other people, on websites, and anywhere other than the tutorials we used. Since then, we've been contributing to this list and now we are going to share 11 triks that strike us as particularly smart or helpful.…
Category : Javascript 04-06-2019 by Janeth Kent
Core features overview of JavaScript syntax (ES6)
Several changes to JavaScript were introduced by ECMAScript 2015, also well-known as ES6. Here is a summary of a number of the foremost common options and syntactic variations, where applicable, with comparisons to ES5. Variables and constant comparison In the following table, we provide a brief overview of the concepts of scope…
Category : Javascript 11-05-2020 by Janeth Kent
Highlights from the JavaScript Style Guide of Google
For anyone who is not already acquainted with it, Google provides a style guide for writing JavaScript that gives the best stylistic practices for writing clean, understandable code (what Google believes to be). The guide does not present difficult rules for writing valid JavaScript, but only tips to keep the source…
Category : Javascript 27-02-2019 by Janeth Kent
Level Up Your JavaScript Skills: 12 basic notions
If you are a developer at any level, understanding its basic concepts is crucial. This article highlights 12 basic concepts that are critical to understanding by any JS developer, but do not represent the full range of what a JS developer should know. 1. Value vs. Reference Variable Assignment To coding bug-free JavaScript,…
Category : Javascript 23-05-2020 by Janeth Kent
ES2019 JavaScript and its new features
ECMAScript 2019 has finished and rolled out new exciting features for developers. The proposals which have been accepted and reached stage 4 by the TC39 committee would be included in the specification of that year and the others - are postponed to the next year. What that’s mentioned above is a…
Category : Javascript 18-02-2019 by Janeth Kent
JavaScript: Variables & Scope. A Visual Guide.
We often speak of discrepancies between var, let and const But more often than not, we still see developers struggling to fully grasp the idea of how everything works. That's because concepts are rarely visualized. Let's catch a glimpse. Not all scopes are identical. Do not memorize scope rules for each type of scope. Try…
Category : Javascript 13-05-2019 by Janeth Kent
Tips for JavaScript Developers
Another year is over and JavaScript is constantly changing. However, there are some tips that can help you write in 2019 clean and efficient code that scales. Below is a list of 9 pragmatic suggestions. async / await Are you still trapped in callback hell? Don't use callbacks unless it's completely necessary, such…
Category : Javascript 08-06-2020 by Janeth Kent
Working with JSON in JavaScript
JSON is short for JavaScript Object Notation and an easy - to - access way to store information. In short, it gives us a collection of human - readable data that we can access in a very logical way. In addition to RSS feeds, any sites now share data using JSON,…
Category : Javascript 08-04-2020 by Janeth Kent
JavaScript Basis: Syntax & Structure
Programming languages are defined by rules. The syntax is what we follow when we write our code, which forms the logical structure of our programs. Let's dive right into the basic components of JavaScript. We will look at values, unicode, semi-colon, indentation, white spacing, commentary, case sensitivity, keywords..ect. By taking the time…
Category : Javascript 07-02-2019 by Janeth Kent
Top 10 JavaScript Books 2019
Though simple for beginners to pick up and play with, JavaScript is a flexible, complex language that you can use to build full-scale applications. If you're an aspiring web developer then you'll need to learn JavaScript. It's a staple for frontend work and it's the fastest growing language powering. This is an…
Category : Javascript 26-01-2019 by Janeth Kent
6 JavaScript Utility Libraries you Should Know in 2019
Nowadays Javascript is the most popular and widely used programming language, so the ecosystem around it constantly grows. However, it is expected that the small "standard library" of Javascript will remain so. To fill this gap, many of the most popular utility libraries have grown on GitHub. Here is a short…
Category : Javascript 18-01-2019 by Janeth Kent
How JSON data types work in mysql
First introduced in MySQL 5.7.8, the JSON data type is a specialized binary column type, similar to a blob , but with added machinery to optimize the storage and retrieval of values from a column typed as json . Javascript Object Notation or more commonly known as JSON, is a modern…
Category : Databases 30-09-2019 by
PHP7: Guide and References to all the changes between version 5.x and 7 of PHP
PHP 7 was released on December 3rd, 2015. It comes with a number of new features, changes, and backwards compatibility breakages that are outlined below. Performance Features Combined Comparison Operator Null Coalesce Operator Scalar Type Declarations Return Type Declarations Anonymous Classes Unicode Codepoint Escape Syntax Closure call() Method Filtered unserialize() IntlChar Class Expectations Group use Declarations Generator Return Expressions Generator Delegation Integer Division with intdiv() session_start() Options preg_replace_callback_array() Function CSPRNG Functions Support…
Category : Php 27-12-2015 by Janeth Kent
Mozilla introduces Firefox 29
Firefox 29 was released on April 29, 2014. The new version looks significantly more like Chrome than the old Firefox. It features the same three-bar menu on the right and rounded tabs, for example. At the same time, though, it keeps the separate search form — something most other browsers have…
Category : Software 29-04-2014 by Janeth Kent
PHP: list of best awesome PHP libraries
It is an exciting time to be a PHP developer. There are lots of useful libraries released every day, and with the help of Composer and Github, they are easy to discover and use. Here is a complete list of the coolest that We’ve come across. Package Management Libraries for package and…
Category : Php 27-04-2014 by Janeth Kent
PHP: Storing arrays in database
When working with databases, sometimes it is necessary to store an array in a MySQL field. Unfortunately, there is no way to directly pass in an array as a parameter. Storing these data structures is a bit more complex, but by no means hard or impossible. To convert any array (or…
Category : Databases 18-11-2013 by Janeth Kent
Tutorial: Introduction to PHP:PDO
Many PHP programmers learned how to access databases by using either the MySQL or MySQLi extensions. As of PHP 5.1, there’s a better way. PHP Data Objects (PDO) provide methods for prepared statements and working with objects that will make you far more productive! PDO Introduction “PDO – PHP Data Objects…
Category : Databases 15-10-2013 by Janeth Kent
PHP: Sort array alphabetically using a string/value in subarray
If we have an array and inside each value of this array we have another array with age and name for example, and we want to sort the first array by the name of each value in the child arrays we do is using usort and strcmp functions from php. Here…
Category : Php 23-08-2013 by Janeth Kent
21 PHP Libraries You Should Know About
The aim of the Standard PHP Library-or SPL is to provide a standard library of interfaces which allows developers to take full advantage of object-oriented programming in PHP. Therefore in this article we have collected 21 of the best PHP Libraries which will assist and help developers to simplify their work and serve…
Category : Programming 24-07-2013 by Janeth Kent
Visualize Your Data: 25 Javascript Visualization Libraries
You have a huge amount of data that you need to present to your website visitors in a clear and concise way. First of all, you have to organise that data so that it's understandable to everyone in some way, right? That's where graphics come in. In web design, graphs…
Category : Javascript 03-05-2021 by Silvia Mazzetta
PHP 5.5: Introduction To The New Functionalities
PHP 5.5.0 has been released, bringing with it a host of new features and fixes. Here we post a review; Generators are now available Generators provide a simple way to iterate through data without having to write a class implementing the Iterator interface. Just like any other function a generator is defined with…
Category : Programming 02-07-2013 by Janeth Kent
50 Fresh Tools for Developers and Designers
Web developers and web designers regularly look for new resources, tools and services to make the search of these ever-growing techniques easier. This overview presents some of the most useful round-ups of time-savers, tools and services for Web designers. As every designer or developer knows, anything that can save you just…
Category : Web design 08-07-2013 by Janeth Kent
Mastering JavaScript: Top Resources to Propel Your Learning Journey
Learning JavaScript is a valuable decision if you're interested in coding and pursuing a career in the tech industry. JavaScript holds the top spot as the most popular programming language on GitHub and is widely used by professional developers, as indicated by the Stack Overflow Developer Survey. It's worth noting that…
Category : Javascript 23-06-2023 by Janeth Kent
10 most used PHP features
We have compiled a selection of top 10 PHP native functions, classes and features. We know first-hand how invaluable these features are, so we hope you find them to be useful too. 1. PDO Class We use the PDO (PHP Data Object) exclusively for connecting to our MySQL databases. PDO provides a nice abstraction layer…
Category : Programming 22-05-2013 by Janeth Kent
318 useful twitter bootstrap resources #1
Display BOOTSTRAP-MAXLENGTH Uses badges to display the maximum length of the field where the user is inserting text. This plugin uses the HTML5 attribute "maxlength" to work. WATABLE a pretty decent jQuery table plugin BOOTSTRAP-TIMEPICKER A simple timepicker component for Twitter Bootstrap. BOOTSTRO.JS Guide users through your application via a series of Bootstrap popovers NOD!…
Category : Web design 17-05-2013 by Janeth Kent
Top Resources For Bootstrap
Bootstrap is an interactive front-end web development framework, designed to facilitate the development of applications and other elements. The latest version of Bootstrap, Bootstrap 4, combines JavaScript, HTML and CSS allowing you to create an active, fast and efficient web page. The design of a responsive web page is one…
Category : Web design 17-05-2020 by Janeth Kent
Free Tools For JavaScript Developers
JavaScript is one of the most widely used programming languages in the world, powering countless web applications and websites. As a JavaScript developer, having access to the right tools can greatly enhance your productivity and efficiency. In this article, we have compiled a list of free tools that every JavaScript…
Category : Javascript 21-06-2023 by Janeth Kent
Exploring the Power of Loops in PHP 8
Loops are an essential part of any programming language, including PHP. They allow you to repeat a block of code multiple times, making it easier to handle repetitive tasks and iterate over data structures. In PHP 8, there are several types of loops available, including the for, while, do-while, and…
Category : Php 23-06-2023 by Janeth Kent
Learning Loops in Php: FOREACH
Loops come in several different flavors in PHP: for, while, do-while, and foreach. We will introduce you to each of them in 3 lessons and we will show you how they can making repetitive tasks straightforward and easy to maintain. Lesson #3: The foreach Loop To understand FOREACH loops you have to know the arrays. When using a loop with…
Category : Php 11-04-2013 by Janeth Kent
PHP-MongoDB Beginners Guide
Over the last year or so, there's been a small revolution taking place in the database world, with the advent of "schema-less" database systems like Apache CouchDB. These databases follow a different approach to data storage as compared to the traditional relational model, and they're quickly becoming popular with Web…
Category : Databases 11-04-2013 by Janeth Kent
Learn PHP: Handy Functions for Beginners
If you’re new to PHP language, we’ll introduce you to seven really handy PHP functions in this quick tip! Function 1 : isset Check if a variable has been set. You just pass it a variable name, and it will return true if that variable exists, and is set to something other than NULL. $name = "Joe"; isset($name); // true isset($age); // false This function also…
Category : Php 11-04-2013 by Janeth Kent
A list of Great PHP libraries and classes you should know
It is an exciting time to be a PHP developer. There are lots of useful libraries released every day, and with the help of Composer and Github, they are easy to discover and use. Here are 24 of the coolest that I’ve come across. Your favorite is not on the list? Share it in…
Category : Programming 26-03-2021 by Janeth Kent
