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Articles by Nikhilesh Aleti
Page 5 of 7
Recursion example in JavaScript to display numbers is descending order?
In this article, the given task is to display the numbers in descending order by using recursion. Let’s get an understanding of the task by looking into the input-output scenarios. Input-Output scenario Let’s look into an input-output scenario, where there is an input number and we need to print the numbers in descending order from the given number to 1. Input = 10; Output = 10 9 8 7 6 5 4 3 2 1 What is recursion? The process of calling itself is called recursion. The function which will call itself is known as a recursive function. Syntax Following ...
Read MoreChecking the equality of array elements (sequence dependent) in JavaScript
In this article, the given task is to check the equality of array elements (sequence dependent). Before we proceed into examples, let’s look at how the input-output scenario will look when we are checking the equality of array elements (sequence dependent) in JavaScript. Input-Output scenario Let’s look into the input-output scenario, where we have declared two arrays and we need to get similar elements in sequence-dependent. Array1 = [2, 5, 6, 7, 9, 0]; Array2 = [3, 5, 0, 8, 9, 4]; Output = [5, 9] In the above snippet, we can see that there are two arrays ...
Read MoreHow do we embed custom data attributes on all HTML elements?
In this article, we need to embed custom data attributes on all HTML elements. we can do so, using the data-* attribute in HTML. The data-* attribute in HTML is used to custom data private to the webpage or application. This attribute adds custom values to an HTML element. The data-* attribute in HTML consists of two parts − The attribute value can be any string. The attribute name should only contain lowercase letters and must have at least one character after the prefix "data-". This data is commonly used in JavaScript to improve the user experience. Following ...
Read MoreExecute a script when a user navigates to a page in HTML?
The task we need to perform in this article is executing a script when a user navigates to a page in HTML. We can do the above task (executing a script when a user navigates to a page in HTML) by using "onpageshow Event". Before we jump into the examples let’s look into the definition and usage of onpageshow event in HTML. HTML onpageshow event The onpageshow event in HTML occurs when a user navigates to a webpage. This event occurs every time the page is loaded. Syntax Following is the syntax of onpageshow event in HTML − ...
Read MoreSet the size of the icons in HTML
In this article, we are going to discuss how to set the size of the icons in HTML. An icon is a symbol that represents a specific action on a webpage. The Icon Fonts contain symbols and glyphs. There are several icon libraries(fonts) that provide icons and can be used on HTML webpages. The prominent icon fonts frequently used by the web developers are Font Awesome, Bootstrap Glyphicons, and Google’s material icons. Font Awesome − This library is completely free, for both commercial and personal use. This Font provides us with 519 free scalable vector icons. These can be ...
Read MoreFunction to compute factorial of a number in JavaScript
In this article, the given task is to get the factorial of a number in JavaScript. What is the factorial of a number? The multiplication of all positive integers smaller than or equal to n gives the factorial of a non-negative integer. For example, assume the non-negative integer is 4 and the factorial of 4 will be 4*3*2*1 which is equal to 24. The symbol of factorial is represented by "!". so it will be (4!). The value of 0! Will be 1 as 0 is not a positive integer. The mathematical formula of factorial ("n!") This is ...
Read MoreConverting two arrays into a JSON object in JavaScript
Given two arrays and the task is to convert those two arrays into a JSON object. Where the first array elements are keys of the object and the second array elements are values of the object. Input-Output Scenario Let’s look into the scenario of how two arrays will be converted into a JSON object. Consider two arrays are having some elements. Now, we need to convert these two arrays into a JSON object. Array1 = [1, 2, 3, 4]; Array2 = ['A', 'B', 'C', 'D']; Output = {"1":"A", "2":"B", "3":"C", "4":"D"} //JSON object In this article, ...
Read MoreRemoving property from a JSON object in JavaScript
A JSON (JavaScript object notation) Object is always surrounded by the curly braces {}. The values must be a valid JSON data type, and the keys must be strings. JSON supports the following data types: number, string, object, Boolean, array, and null. There has to be a colon (":") separating the keys and values. A comma separates each key and value pair. Following is the syntax of JSON Object − JSONObject = {} Following is the basic declaration of JSON Object in JavaScript − JSONObject = { "name" : "Suriya", ...
Read MoreFinding product of Number digits in JavaScript
We are required to write a JavaScript program that takes in a number and finds the product of all of its digits. Input output scenarios Assume there is a number digit assigned to a variable and task is to find the product of the number. Input = 12345; Output = 120 Let’s look into another scenario, where we convert the string number digit into int value and multiply them. Input = "12345"; Output = 120 Math.floor() Math.floor() function in JavaScript returns the largest integer which is less than equal to a given number. In simple ...
Read MoreFinding the mid of an array in JavaScript
An Array in JavaScript is datatype which is used to store homogeneous elements. These elements are stored at contiguous memory locations. We can access each data element in the array with the help of index numbers. The index numbers will start from 0. Syntax Following is the syntax of creating a JavaScript array − const array_name = [item1, item2, ...]; The following is the simple declaration of array in JavaScript. Const Body = ['Eyes', 'Nose', 'Lips', 'Ears']; Finding the mid element of an array We are required to write a JavaScript program that finds the middlemost ...
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