basic javascript calculator source code

Basic JavaScript Calculator Source Code | HTML, CSS: Do you ever think what you can do using Javascript? Javascript lets you do all that you will never have thought about. At this time JavaScript is one of the most demanding languages.

You will find this calculator programs on a very well-known website like CodePen, but those programs will be very advanced. If you are a beginner or are looking for simple code, then those codes will be difficult for you to understand.

I will show you how to make a calculator using JavaScript, HTML & CSS. I.e. will share the source code of JavaScript calculator. This is very simple but useful program. When I started learning Javascript, in the second class I expressed my desire to learn this from my teacher.

basic javascript calculator

Basic JavaScript Calculator Source Code Given Here Below.

Copy these codes and save it with the name that is given here. use can use IDE as well as notepad in windows. I would recommend that first understand this code and then use it anywhere. So, if you have to make it yourself, you do not have to copy the code repeatedly.

I had been created in 2 separate files So that the code does not get long. Generate two files first “calculator.html” second “style.css”

calculator.html

style.css

Preview

  • If you are using a phone click on Result for preview


This is source code for a calculator using HTML, CSS, JavaScript. I Know this is very basic, but always remember basic is most important. Whose basic has weak they can ‘t become an expert. This is my Opinion.

 

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27 COMMENTS

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  3. Hi sir,
    I studied engineering (EEE), i don’t have IT background, can i learn web design course, will you please guide me.

  4. this is great but someone who is a beginner a little explanation on what happens on the sections will go a long way for me to understand the code

  5. Appreciate your effort. You should add a clear button as now it does only the first calculation and then it stops proper functioning. With clear button it should reset all the variables’ values.

  6. I’m trying to figure out how to create one myself. This one has some issues besides missing clear button:
    0.5-2*3 gives -5.5 for example.
    Also, user can enter multiple decimal separator (1.2.3.4) after which the calculator produces no result.

  7. Hi Shaan,
    Love the code and the way you present.

    Can you please explain how you implemented the zoom function in the Preview section (the 1x, 0.5x and 0.25x buttons?

    This is something I would love to be able to replicate in loads of situations.

    Thanks,
    Col

  8. I do 5 + 8, for example, it becomes 13. If I want to do another calculation and press 2, it becomes 132 and the screen does not clear,I want to show from the beginning.I want to change the screen numbers to the compressed number after each calculation by clicking

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