Important most things you should know about JSX
What JSX is JSX is a syntax extension for JavaScript. Basically, it extends JavaScript so that constructs like HTML/XML can be used with JavaScript. It allows developers to use HTML syntax to compose JavaScript components. This makes it possible to have a clear and familiar syntax for defining DOM tree structures with attributes. Although it…
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How to use events listeners and Event Subscriber in Symfony
We use events to perform some tasks if an event occurs, these tasks can be achieved by using the followings: 1. Event Subscriber 2. Event Listeners Event Subscriber vs Event Listeners They both serve the same purpose but have different implementations. Both trigger some functions in the specific time of processing data by Symfony. We can declare…
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Destructuring Assignment in ES6- Arrays
Destructuring assignment is a nice feature that comes with ES6. Destructuring is a JavaScript expression that makes it possible to unpack values from an array or properties from an object into separate variables. That is, we can extract data from arrays and objects and assign it to variables. Why is this necessary? Imagine if we…
WordPress Installation Steps
WordPress is the widely used CMS for creating blogs. Installing WordPress is a very easy and simple process. It will take too less time to complete the Installation. There are many providers in the market that make the one-step WordPress installation possible by clicking the installer tool. In this tutorial, we are going to see…
How to check the PHP version
Newer PHP versions come with more features and improvements while deprecating some obsolete features. Old PHP codes might not work with more recent PHP versions and vice versa. It is, therefore, essential to use the correct PHP version for your code. You can check the PHP version on your system by running the php command from the command line. There are also some PHP functions that you can use…
How to Add Reset Button in jQuery UI Datepicker
I am using the jQuery UI date picker plugin to add the date picker dialog to the text input field. Since the input field is a read-only element, it is not allowed to clear the selected date. Is there any option to add a reset button in the date picker to clear the date from…
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PHP 8: Constructor property promotion
I’m very happy with the constructor property promotion RFC, it’s passed and will be added in PHP 8. You see, this feature reduces a lot of boilerplate code when constructing simple objects such as VOs and DTOs. In short: property promotion allows you to combine class fields, constructor definition, and variable assignments all into one syntax,…
How to Reverse A String with JavaScript
The inverse string problem is a general algorithm problem. In this article, we will consider four JavaScript solutions for that. Reversing a string is, well, reversing a string. Okay, here’s the problem statement: Write a function that reverses a string. If you pass “Teach” to the function, it should return “hcaeT” and “listen” should become…
How do sum values from an array of key-value pairs in JavaScript?
To fix getFullyear() is not a function with JavaScript, we should be called getFullYear instead. For instance, we write to call start.getFullYear to return the 4-digit year number of the start date. Conclusion To fix getFullyear() is not a function with JavaScript, we should be called getFullYear instead.
How to Object Destructuring in ES6
This is a follow-up article to my previous article on Array Destructuring. Except you have an idea of destructuring, you should read it. First, let’s see why object destructuring is needed. We want to extract data from the object and assign it to new variables. Before ES6, how would this happen? See how tedious it is…
How to move an entire div element up x pixels with CSS?
Sometimes, we want to move an entire div element up x pixels with CSS. In this article, we’ll look at how to move an entire div element up x pixels with CSS. To move an entire div element up to x pixels with CSS, we set the margin-top property. For instance, we write to move the div…
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How to use :hover to modify the CSS of another class?
To use :hover to modify the CSS of another class, we can use it with another selector. For instance, we write to select the elements with the class wrapper in the elements with class item that we hovered on. We set its color and background-color for those elements.
How to Install a WordPress Plugin for Beginners
WordPress plugins are used to enable addon features to the web application developed in WordPress. Many features do not come with the WordPress core by default. So, if we need to extend the functionality of the WordPress application, then we need to use the plugins. There are many plugins available in the market for WordPress…
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How to Search Recently Modified Files in Linux
This post will help you to find recently modified files in Linux via the command line. The find command works with, defining duration in Minutes or Days. The minutes are defined with -mmin and the day’s value can be defined with -mtime You can also define the search criteria to find files modified within or before the specified…
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PHP 8: Attributes
As of PHP 8, we’ll be able to use attributes. The goal of these attributes, also known as annotations in many other languages, is to add metadata to classes, methods, variables, and whatnot; in a structured way. The concept of attributes isn’t new at all, we’ve been using docblocks to simulate their behavior for years…
Common Mistakes with Conditionals
This article will go over some mistakes that are easy to make when writing more complex programs with conditional. Mistake 1: Not treating expressions as distinct:Let’s say we want to print something if your variable $num is equal to 1 or 2 or 3. Why doesn’t the following code work? $num = 5; if ($num === 1 || 2 || 3) {…
How to style an HTML radio button to look like a checkbox with CSS?
Sometimes, we want to style an HTML radio button to look like a checkbox with CSS. In this article, we’ll see how to style an HTML radio button to look like a checkbox with CSS. To style an HTML radio button to look like a checkbox with CSS, we use the appearance property. For instance, we write…
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How to use setTimeout and setInterval methods in JavaScript
There are times when you don’t want to execute a function immediately. You want it to delay its execution or run repeatedly after a certain time interval. JavaScript provides us with two methods to achieve that: setTimeout and setInterval. In this article, we will discuss these two methods and how we can use them to…
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Enable or Disable SSH Root Login Access in Linux
SSH Root user login access is enabled in any system by default. Or we are asked while installing a system. that you have to enable or disable ssh root user login access. And you never know how to enable and disable ssh root user login access. So in this tutorial, we will show you how…
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How to Symfony parameters and environment variables use
Parameter The Symfony parameter is a variable stored in the service container. Use parameters when you want to separate out values that regularly change as well as for reusable purposes.We should prefix with ‘app’ to prevent conflicting with parameters from Symfony and 3rd party bundle, the following example is a parameter for sender email: #…
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