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Update2.html
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Update2.html
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<!DOCTYPE html>
<html lang="eng-us">
<title>Calculator</title>
<head>
<h1>This is a Calculator</h1>
</head>
<script>
function isNumeric(val) {
return /^-?\d+$/.test(val);
}
function Solve()
{
var isequation = true
const equation = Object.assign([], document.getElementById("equation").value);
//If there are numbers
if (document.getElementById("equation").value.includes("0") || document.getElementById("equation").value.includes("1") || document.getElementById("equation").value.includes("2") || document.getElementById("equation").value.includes("3") || document.getElementById("equation").value.includes("4") || document.getElementById("equation").value.includes("5") || document.getElementById("equation").value.includes("6") || document.getElementById("equation").value.includes("7") || document.getElementById("equation").value.includes("8") || document.getElementById("equation").value.includes("9"))
{
if( (document.getElementById("equation").value.includes("+") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("-") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("*") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("x") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("X") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("/") && document.getElementById("equation").value.includes("=")) || (document.getElementById("equation").value.includes("^") && document.getElementById("equation").value.includes("=")))
{
}
else
{
isequation = false;
}
for (let count = 0; count < equation.length; count++)
{
if((equation[count] == "+") || (equation[count] == "-") || (equation[count] == "*") || (equation[count] == "x") || (equation[count] == "X") || (equation[count] == "/"))
{
if((equation[count+1] == "+") || (equation[count+1] == "-") || (equation[count+1] == "*") || (equation[count+1] == "x") || (equation[count+1] == "X") || (equation[count+1] == "/"))
{
isequation = false;
}
}
}
if (equation[equation.length-1] != "=")
{
isequation = false;
}
}
else
{
isequation = false;
}
if (isequation == true)
{
const equation = Object.assign([], document.getElementById("equation").value);
//saves the numbers and equations
let number = ""
const numbers = []
const simbles = []
//0=*/,2=+-
let symbleon = 0
let finalnumber = 0
//pemdas
for (let count = 0; count < equation.length; count++)
{
if ((equation[count] == "0") || (equation[count] == "1") || (equation[count] == "2") || (equation[count] == "3") || (equation[count] == "4")|| (equation[count] == "5")|| (equation[count] == "6")|| (equation[count] == "7")|| (equation[count] == "8")|| (equation[count] == "9"))
{
number+=equation[count];
}
else
{
numbers.push(number);
number = "";
simbles.push(equation[count]);
}
};
for (let symblecount = 0; symblecount < simbles.length; symblecount++)
{
if (simbles[symblecount] == "^")
{
let numberthing = parseInt(numbers[symblecount])
for (let topnum = 0; topnum < parseInt(numbers[symblecount+1]); topnum++)
{
numberthing = numberthing*parseInt(numbers[symblecount]);
}
numbers[symblecount] = numberthing.toString();
numbers.splice(symblecount+1);
}
}
for (let symblecount = 0; symblecount < simbles.length; symblecount++)
{
if ((simbles[symblecount] == "/") || (simbles[symblecount] == "*") || (simbles[symblecount] == "x") || (simbles[symblecount] == "X"))
{
if (simbles[symblecount] == "/")
{
numbers[symblecount] = (parseInt(numbers[symblecount])/parseInt(numbers[symblecount+1])).toString();
numbers.splice(symblecount+1);
}
else
{
numbers[symblecount] = (parseInt(numbers[symblecount])*parseInt(numbers[symblecount+1])).toString();
numbers.splice(symblecount+1);
}
}
}
for (let symblecount = 0; symblecount < simbles.length; symblecount++)
{
if ((simbles[symblecount] == "+") || (simbles[symblecount] == "-"))
{
if (simbles[symblecount] == "+")
{
numbers[symblecount] = (parseInt(numbers[symblecount])+parseInt(numbers[symblecount+1])).toString();
numbers.splice(symblecount+1);
}
else
{
numbers[symblecount] = (parseInt(numbers[symblecount])-parseInt(numbers[symblecount+1])).toString();
numbers.splice(symblecount+1);
}
}
}
if (numbers[0] != "NaN")
{
document.getElementById("equation").value = document.getElementById("equation").value + numbers[0];
}
}
}
</script>
<body>
<div>
<a id="test">The Equation needs at least 2 numbers. It can only operate ^,+,-,* and /. The Equation must have = at the end of the equation. Can Only Operate on Positive numbers.</a>
<textarea id="equation" cols="40" rows="5">3+2*2=</textarea>
<button onclick="Solve()">Solve</button>
</div>
</body>
<style>
h1 {text-align: center;
font-size: xx-large;}
div {background-color: rgba(161, 161, 255, 0.336);
width: 100%;
height: 70vh;
min-height: fit-content;}
a {text-align: center;
width: 100%;
font-size: x-large;}
button {width: 100%;
font-size: xx-large;}
textarea {
height: 100%;
width: 100%;
font-size: xx-large;
}
</style>
</html>