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Bash scripts are one of the most convenient approaches when we talk about making the command line processes automated in nature. They help us in doing a group of things in a simpler and more understandable manner, and we can do almost all theoperations that we could do in other languages as well.It is well known that the syntax of the bash can be tricky at first, and hence I will try to explain everything that I have used in this tutorial.We come across various situations where we would want to make use of bash scripts to perform different operations ... Read More
HTML contains special characters such as ‘, ’ ‘/, ’ and many more such as single and double commas. These special characters are used for the HTML tag, such as ‘’ is used to close the HTML tag. This tutorial teaches us to escape HTML special characters in JavaScript.Now, the question is that what if we want to use these characters inside the HTML content? If we use special characters normally in the HTML content, it considers it the opening or closing HTML tag and produces an unknown error.For example, we need to render the below string to the browser. ... Read More
This tutorial will teach us to use a label with a break statement in JavaScript. The label and break statement are not new in JavaScript, and many of you are familiar with both. The label is a unique string we can use to give the identity to the block of code, loops, switch cases, etc., in JavaScript.We can use the break keyword with the label statement. It stops the execution of the code in the middle.In this tutorial, we will learn to use the label and break statement with the loops, and block of codes.Here are the basic definitions of ... Read More
This tutorial will teach us to use the JavaScript functions as an object. However, functions, objects, and arrays are the mutable data types in JavaScript, and all mutable data types are the objects.The JavaScript object is one type of entity that contains the key-value pairs. It contains unique keys; every key has some values that can be of any type. We can use the object key to access the values of the objects.We can create a function so that it behaves like an object. Below, we have given a detailed explanation of converting the function to an object.Use JavaScript function ... Read More
In this tutorial, we will learn to assign a function to a variable in JavaScript. The function is the code block that we can reuse quickly, often just by making a function call. There are two ways to declare a function in JavaScript, one is a named function, and another is an anonymous function.Most JavaScript programmers are familiar with the name function, and users can follow the below syntax to declare the named function.function function_name() { //function body }In the above syntax, users can see that, we can create a function definition with the function keyword and following by function ... Read More
This tutorial will teach us to use a label with the continue statement in JavaScript. In the ES5, we were using the label with the go-to statement to jump over the iteration, but it is not supported in the ES6 version of JavaScript. So, we will use the continue statement to jump over the loop iteration or skip any single iteration.Here are the basic definitions of the label and continue statement.label − It can be any string to give a name or label to the block of code.continue − It is used to jump over the one iteration of the ... Read More
In this tutorial, we will learn to calculate the logarithm of any number value and specify the base for the Math.log() method.The logarithmic operation of mathematics is beneficial in many places. For example, if you want to show the graph representation for billions of values, it is hard to render on the screen. For that, we change the scale of the graph using the logarithm, and it becomes easy to generate and visualize the output for any particular operation.There can be many more examples where we can use the logarithmic function.Calculate the log using the Math.log()Specify different bases for Math.log()Specify ... Read More
In this tutorial, we will learn to simplify the use of regular expressions in JavaScript. Some of you have heard the regular expression word for the first time. So, it is not related to JavaScript but can be used in any programming language.The simple definition of the regular expression is that it is a sequence of the characters, also called Regex or RegExp. It can be a small or complex sequence.Let’s understand the need for regular expression by the example in the below section.Why should we use regular expressions?Suppose that you are developing the application and you need to take ... Read More
This tutorial will teach us to show image rollover with a mouse event in JavaScript. The meaning of the image rollover is to either change the image style or the whole image when the user rollovers the mouse on the image.To build an attractive user interface, developers often add image rollover features to the website and applications. Here, we will see to apply image rollover differently.Change the style of the image on mouse rolloverIn this method, to create the image rollover, we will use the onmouseover and onmouseout event of JavaScript. When users take the mouse pointer on the image, ... Read More
This tutorial teaches us to save HTML locally with JavaScript.What is local storage?Local storage means storing content inside your web browser locally. It means it takes space on your computer to store the content rather than storing it on the server of the web application. It is one kind of web API that contains all browsers by default.Local storage generally stores the application data, user’s secession data, authentication token, and many other things. Before HTML5, developers used cookies to store the HTML content locally, but now every browser has local storage.Also, cookies only allow storage of a maximum of 4kb ... Read More