Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
How to use JavaScript to redirect an HTML page?
You might have encountered a situation where you clicked a URL to reach a page X but internally you were directed to another page Y. It happens due to page redirection. JavaScript provides several methods to redirect users from one page to another. This is commonly used for routing users after form submissions, authentication, or when content has moved to a new location. Methods for Page Redirection There are three main ways to redirect pages using JavaScript: Using window.location.href The most common method assigns a new URL to window.location.href: ...
Read MoreHow to return a number indicating the Unicode value of the character?
The charCodeAt() method returns a number indicating the Unicode value of the character at the given index. Unicode code points range from 0 to 1, 114, 111. The first 128 Unicode code points are a direct match of the ASCII character encoding. Syntax string.charCodeAt(index) Parameters index − An integer between 0 and 1 less than the length of the string; if unspecified, defaults to 0. Return Value Returns a number representing the Unicode code point of the character at the specified index. If the index is ...
Read MoreHow to work with Structs in JavaScript?
In this tutorial, let us discuss how to work with structs in JavaScript. What is a struct? A struct is the short name of the data structure. The structure creates multiple values of different types in a single variable. We can use a struct to generate records. JavaScript doesn't have built-in struct support like C or C++. However, we can simulate struct-like behavior using JavaScript objects and constructor functions. Let us see the methods to create a structure. Using the String split() Method We can create a struct constructor dynamically by parsing a comma-separated string of ...
Read MoreAutocomplete text input for HTML5?
Use the autocomplete attribute for autocomplete text input. The autocomplete attribute is used with form elements to set the autocomplete feature on or off. If the autocomplete feature is on, the browser will automatically show values based on what users entered before in the field. If the autocomplete feature is off, the browser won't automatically show values based on what users entered before in the field. Attribute Values The following are the attribute values: S. ...
Read MoreHow can I set the color, style, and width of lines in a single property with CSS?
The border property allows you to specify color, style, and width of lines in one property. This shorthand property combines three individual border properties into a single declaration, making CSS more concise and easier to manage. Syntax border: width style color; Where: width - thickness of the border (e.g., 1px, 2px, thick) style - border style (solid, dashed, dotted, etc.) color - border color (name, hex, rgb, etc.) Example You can try to run the following code to specify the border property: ...
Read MoreRemoving an element from a given position of the array in Javascript
In JavaScript, you can remove an element from a specific position in an array using several methods. Each approach has different behaviors and use cases. Syntax Here are the main syntaxes for removing elements: // Delete operator (leaves undefined) delete arr[index]; // Slice method (creates new array) arr.slice(0, index).concat(arr.slice(index + 1)); // Splice method (modifies original array) arr.splice(index, 1); Using delete Operator The delete operator removes an element but leaves undefined in its place, keeping the array length unchanged. Remove element using delete ...
Read MoreDigital root sort algorithm JavaScript
Digital root of a positive integer is defined as the sum of all of its digits. We are given an array of integers and need to sort it based on digit root values. If a number comes before b, then the digit root of a should be less than or equal to the digit root of b. If two numbers have the same digit root, the smaller number should come first. For example, 4 and 13 have the same digit root (4 and 1+3=4), but since 4 < 13, the number 4 comes before 13 in the sorted array. ...
Read MoreExtract the value of the to a variable using JavaScript?
To extract the value of the element to a variable using JavaScript, use the textContent property to get the text content from any HTML or SVG text element. Syntax var textValue = document.getElementById("elementId").textContent; Example Extract SVG Text Value This is the JavaScript Tutorial ...
Read MoreIs having the first JavaScript parameter with default value possible?
In JavaScript, you can have default values for the first parameter, but you need special techniques to skip it when calling the function. The most effective approach is using destructuring with spread syntax. The Challenge When you define a function with a default value for the first parameter, you cannot simply omit it in a regular function call: function multiply(firstParam = 10, secondParam) { return firstParam * secondParam; } // This won't work as expected: multiply(5); // firstParam = 5, secondParam = undefined Solution: Using Destructuring with Spread Syntax ...
Read MoreAbsolute sum of array elements - JavaScript
We are required to write a JavaScript function that takes in an array with both positive and negative numbers and returns the absolute sum of all the elements of the array. We are required to do this without taking help of any inbuilt library function. For example: If the array is − const arr = [1, -5, -34, -5, 2, 5, 6]; Then the output should be − 58 Understanding Absolute Sum The absolute sum means we convert all negative numbers to positive and then add all elements. For ...
Read More