The factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, 5! = 5 * 4 * 3 * 2 * 1 = 120. The value…
Sum Of Two Numbers In JavaScript: You can use the ‘+’ operator to add two numbers in JavaScript. Here is an example of how to add two numbers and store the result in a variable: You can also add two…
You can use the Date object in JavaScript to display the current date and time. The Date object has various methods that can be used to get different parts of the date and time, such as the year, month, day,…
A digital clock in JavaScript can be created using the setInterval() function and the Date object. The setInterval() function is used to execute a function repeatedly at a specified time interval, and the Date object is used to get the…
You can use the setTimeout() function in JavaScript to redirect to another page after a certain amount of time. The setTimeout() function takes two arguments: a function to execute and a time in milliseconds. Here is an example that shows…
There are several ways to get the last character of a string in JavaScript. Using charAt() method: This method takes an index as an argument and returns the character at that index. To get the last character, you can pass…
You can use the substring() method to remove the last character of a string in JavaScript. The first argument of the method is the start index, and the second argument is the end index. To remove the last character, you…
You can use JavaScript to validate an email address by using regular expressions. A regular expression is a sequence of characters that defines a search pattern. In this case, you can use a regular expression to check whether the email…
You can use JavaScript to check if an input field is empty by comparing the value of the field to an empty string. Here’s an example of how to do it: In this example, when the user clicks the “Submit”…