Simple JavaScript calculator Tutorial for Beginners

Simple JavaScript calculator Tutorial for Beginners

Simple JavaScript calculator Tutorial for Beganers

In this article, I am going to show you how to build a calculator using javascript code. I have already designed many more types of calculators using HTML CSS and JavaScript programming code. If you are a beginner and want to know how to build a JavaScript calculator then this tutorial will definitely help you. 

Here I have explained in full step by step which programming code I have used to create any element. We all know what a calculator is and why it is used. These are mainly used for mathematical calculations. In the design shown in this article, you can do small mathematical calculations like addition, subtraction, multiplication, division, etc. 

HTML helped build its structure and buttons. CSS code designed it. The most significant role here is played by JavaScript code which is used to perform calculations and activate the buttons in the calculator.

       ➤ In this case, I have used seven operator buttons which basically help to do this calculation such as addition, subtraction, multiplication, division, equal, cancel, backspace, etc.

       ➤ In this case, I have used eleven number buttons like 0 to 9.

       ➤ There is a beautiful display where all these calculations can be seen.

Simple JavaScript Calculator [Live Demo]

Follow the demo section below to watch the live demo of this calculator. Here you will find the required source code which you can copy and use in your project.

See the Pen
basic calculator by Foolish Developer (@fghty)
on CodePen.

 As you can see in the demo above, this is a nice and simple JavaScript calculator. In which I used eighteen buttons with the number and operator buttons and put a nice display. I used a different color for the background of the operator numbers and added a hover color to it.

Create Calculator using HTML, CSS & JavaScript

 If you want to make this design, you should definitely follow the tutorial below. First of all, you create an HTML and a CSS file. In this case, I have used a very small amount of CSS programming code so you can not create a separate CSS file. If you want to create a CSS file, then you must attach that file to the HTML file.

Step 1: Create the basic structure (more…)

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How to Make a Word Counter with JavaScript ‍

How to Make a Word Counter with JavaScript ‍

You will learn how to create word counters with the help of JavaScript. You will see that there are many websites on the internet that are much more popular for counting words or characters. I will try to explain in this tutorial a basic structure of how these designs work. 

A simple word counter depending on the general JavaScript programming code. First of all, I have made a box (Textarea) here. When you write something in that box, every character you write in that box will be a live count. The counted results can be seen in the box below. 

Simple Word Counter with JavaScript ‍

Basically, this design will count the number of characters, each character you write in this box will count with space. I used a small amount of HTML and CSS code to create the box and design the background. 

Here all the work is handled by JavaScript, that is, everything shown in the box that counts these words is handled by JavaScript. If you want to know better how this word (character) counter works then you can see the demo below.

See the Pen
word counter by Foolish Developer (@fghty)
on CodePen.

As you can see, I made a rectangular box here. When you type something in that box, it will count live. The counted results can be seen through a small box below.

In the background of this box, I have used white color and added a blue border all around to enhance the beauty. Follow the tutorial below to make this design. In this case, first of all, let me say that I have used the bootstrap CDN link. Be sure to add a link to these two in the head section of your HTML file.

Step 1: Design the background of the word counter

 First of all, you create HTML and CSS files. Then copy the following HTML structure and add it to your HTML file.

<!DOCTYPE html>
<html lang=”en”>
<head> 
  <link rel=”stylesheet” href=”https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css”>
  
  <meta charset=”UTF-8″>
  <meta http-equiv=”X-UA-Compatible” content=”IE=edge”>
  <meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
  <title>Document</title>
  <style>
   /* CSS Code */
  </style>
</head>
<body>
  
   
  <div class=”column”>
 
</div>
<script>
  // Javascript code
</script>
</body>
</html>

Using the CSS code below I basically designed this word counter in the background.

(more…)

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