Simple Calculator in HTML
This is a simple calculator built with HTML without any JavaScript.
We use the form element to create the calculator interface,
and the output element to display the result.
Example Code
<form oninput="result.value = parseInt(num1.value) + parseInt(num2.value)">
<input type="number" name="num1" value="1" required />
+
<input type="number" name="num2" value="2" required />
=
<output name="result">3</output>
</form>
Output Result: You can change input value
In this example, we have two input fields for the numbers to be added, and
an output field to display the result. The oninput attribute
of the form element is used to automatically update the
result whenever the input values change.
The calculation is performed using the expression
parseInt(num1.value) + parseInt(num2.value), which converts
the input values to integers and adds them together.
This approach allows us to create a simple calculator without any JavaScript, relying solely on HTML and built-in form functionality.
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