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The setInteral() method allows us to continuously trigger a callback function after every particular time period. We can pass the callback function as the first parameter to trigger after every time period, and the time period in the milliseconds as a second parameter. The setInterval() method invokes the callback function after a particular number of milliseconds for the first time. Now, the problem is we need to invoke the callback function instantly for the first time at 0 milliseconds, and after that, we need to invoke it continuously in the given time period. Example In the example below, we created ... Read More
The range input allows a selection of any value between the particular range of values. Using JavaScript, we can get the input value that users have entered in the range input. The onchage event triggers only when the user releases the mouse key. So, it will not update the value while dragging the range slider. You can face this problem in all browsers, such as chrome, safari, but not only in Firefox. Users can follow the example below to check whether the input value is updated while dragging the range input. Example 1 (Input values will not update while dragging ... Read More
Generally, developers add the submit button to submit the input field's text. However, if they allow users to submit the input value by pressing enter, it improves the UX of the application. Here, we will learn the general way to detect the key press using the key listener event. Afterwards, we can perform any operation whenever the user presses the enter key button. Syntax Users can follow the syntax below to detect whenever the user presses the enter key. input.addEventListener("keypress", function (event) { if (event.keyCode == 13) { // enter pressed ... Read More
In JavaScript, we can use the splice() method to splice an array. The splice() method inserts or deletes single or multiple elements from the array. We can pass the starting index as the first parameter of the splice() method, from which we can insert or delete the elements. It takes the number of elements to delete from the array as a second parameter and array values as the third parameter to insert into the array. This tutorial will teach us to splice an array without mutating the original array. Mutating the original array means making changes to the array. Whenever ... Read More
We can create tabs using HTML, CSS & JavaScript. There can be two types of tabs. One is horizontal tabs, and another is vertical tabs. The tabs allow us to show different contents in very less space as we can show the different content according to the different tabs. We will learn to create horizontal and vertical tabs from scratch using HTML, CSS, and JavaScript. Create horizontal tabs We can show all tabs in a single row by creating horizontal tabs. Also, we can show the content of the selected tab below all tabs. Syntax Users can follow the syntax ... Read More
The hamburger menu icon has three vertical bars, which the navbar uses to expand and collapse the menu on mobile and tablet devices. This tutorial will teach us to create a hamburger menu from scratch. Here, we will use HTML, CSS, JavaScript, and Bootstrap to create a stylish hamburger menu with a navbar. Steps Users can follow the steps below to create a navbar with a hamburger menu icon. Step 1 − Create a div with a container class containing a navbar and an expandable menu. Step 2 − After that, create a div with a header class inside ... Read More
Cell phones are one of the most valuable assets of our life as they contain sensitive data such as pictures, videos, financial information, banking details, etc. The last thing you want to do is to let it fall into the wrong hands. However, thanks to advanced technology, tracking a smartphone is much easier than it used to be in the pre-GPS era. In this tutorial, we have listed down several methods that you can use to track a lost cell phone. Finding a Lost Android Phone If you lost your Android phone here is the methods explaining the step by ... Read More
Matrices are nothing but a collection of data elements arranged in a rectangular layout that is two-dimensional. In Java, an array with two dimensions can be considered as a matrix. As per the problem statement the task is to count all the rows in a matrix that are sorted either in strictly increasing order or in strictly decreasing order. Let’s deep dive into this article, to know how it can be done by using Java programming language. To show you some instances Instance-1 Suppose the original matrix is{ { 5, 6, 7, 8 , ... Read More
In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. The matrix in java is nothing but a multi-dimensional array which represents multiple rows and columns. As per the problem statement we have to find the minimum element present in every row of a given matrix of a multi-dimensional array. Let’s deep dive into this article, to know how it can be done by using Java programming language. To show you some instances Instance-1 Suppose the original matrix is = { {2, 3, 11, 4, 6}, ... Read More
Octal Number − Octal number is also one of the number systems available. The octal number is represented with 8 digits which is from 0 to 7(0, 1, 2, 3... 7). The Octal numbers are expressed as base-8 in the numeral system. Hexadecimal Number − Hexadecimal number is also one of the number systems available. The Hexadecimal number is represented with 16 digits which is from 0 to 15(0, 1, 2, 3... 15). From 10 to 15 it is represented as A to F. The Hexadecimal numbers are expressed as base-16 in the numeral system. Here we first convert the ... Read More