Pure javascript code to implement the calculator function (three methods), javascript Calculator

Pure javascript code to implement the calculator function (three methods), javascript Calculator

Today, I will share with you a calculator program written in pure javascript code, which can be used in many industries, such as renovation budget and loan interest rates.

First, let's take a look at the effect:

Method 1:

The Code is as follows:

<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
Code 2:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
Method 3:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
The above three methods have implemented the pure javascript code to implement the calculator function. I hope you will like it.