TOP-Calculator-Project

create functions for the following items and testing them in your browser’s console: add subtract multiply divide
Create three variables for each of the parts of a calculator operation.
Create a variable for the first number, the operator, and the second number,
You’ll use these variables to update your display later.
Create a new function (operate) that takes an operator and 2 numbers and then calls one of the above functions on the numbers.
Create a basic HTML calculator with buttons for each digit, each of the above functions and an “Equals” key.
Create the functions that populate the display when you click the number buttons. You should be storing the ‘display value’ in a variable somewhere for use in the next step.
Make the calculator work! You’ll need to store the first number and second number that are input into the calculator, utilize the operator that the user selects, and then operate() on the two numbers when the user presses the “=” key.

NOTE!!
- If you want how I did it check the breakpoint in the Commit message!!
watch out for and fix these bugs if they show up in your code:

Users should be able to string together several operations and get the right answer, with each pair of numbers being evaluated at a time. For example, 12 + 7 - 5 * 3 = should yield 42.
Your calculator should not evaluate more than a single pair of numbers at a time. Example: you press a number button (12), followed by an operator button (+), a second number button (7), and finally a second operator button (-). Your calculator should then do the following: first, evaluate the first pair of numbers (12 + 7), second, display the result of that calculation (19), and finally, use that result (19) as the first number in your new calculation, along with the next operator (-).
You should round answers with long decimals so that they don’t overflow the screen.
Pressing = before entering all of the numbers or an operator could cause problems!
Pressing = before entering all of the numbers or an operator could cause problems!
Display a snarky error message if the user tries to divide by 0… and don’t let it crash your calculator!

Users can get floating point numbers if they do the math required to get one, but they can’t type them in yet. Add a . button and let users input decimals! Make sure you don’t let them type more than one though: 12.3.56.5. It is hard to do math on these numbers. (disable the decimal button if there’s already one in the display)
Make it look nice! This is a great project to practice your CSS skills. At least make the operations a different color from the keypad buttons.
Add a “backspace” button, so the user can undo if they click the wrong number.
Add keyboard support!

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