Programmiererforum

Code: Select all

deleteButton.addEventListener("click", () => {
if (calcString.length > 0) {
calcString = calcString.slice(0, -1);
resultText.textContent = calcString || "0";
display.textContent = calcString.slice(-1) || "0";
} else {
calcString = "";
resultText.textContent = "0";
display.textContent = "0";
}
});

Code: Select all

const display = document.getElementById("display");
const buttons = document.querySelectorAll(".btn");
const copyButton = document.getElementById("copy");
const resultText = document.getElementById("result");

const rootModal = document.getElementById("rootModal");
const closeModal = document.getElementById("closeModal");
const rootInput = document.getElementById("rootInput");
const submitRoot = document.getElementById("submitRoot");

const deleteButton = document.getElementById("delete");

let calcString = "";
let result = null;
let rootDegree = null;

buttons.forEach((button) => {
button.addEventListener("click", () => {
const value = button.dataset.value;

if (button.classList.contains("clear")) {
calcString = "";
rootDegree = null;
display.textContent = "0";
resultText.textContent = "0";
result = null;
} else if (button.classList.contains("equals")) {
try {
if (rootDegree !== null) {
const base = parseFloat(calcString.replace('√', ''));
result = Math.pow(base, 1 / rootDegree);
} else {
result = eval(calcString.replace(/\^/g, "**"));
}

display.textContent = result;
resultText.textContent = `${calcString} =`;
calcString = result.toString();
rootDegree = null;
} catch (error) {
display.textContent = "Error";
resultText.textContent = "Invalid Input";
calcString = "";
result = null;
}
} else if (button.dataset.value === "nth-root") {
rootModal.style.display = "block";
} else {
calcString += value;
resultText.textContent = calcString;
display.textContent = value;
}
});
});

deleteButton.addEventListener("click", () => {
if (calcString.length > 0) {
calcString = calcString.slice(-1);
resultText.textContent = calcString || "0";
display.textContent = calcString.slice(-1) || "0";
} else {
calcString = "";
resultText.textContent = "0";
display.textContent = "0";
}
});

closeModal.addEventListener("click", () => {
rootModal.style.display = "none";
});

submitRoot.addEventListener("click", () => {
const enteredValue = parseFloat(rootInput.value);
if (isNaN(enteredValue) || enteredValue  {
if (event.target === rootModal) {
rootModal.style.display = "none";
}
});

copyButton.addEventListener("click", () => {
if (result !== null && result !== "Error") {
navigator.clipboard.writeText(result)
.then(() => {
alert("Result copied to clipboard!");
})
.catch((err) =>  {
console.error("Error copying to clipboard: ", err);
});
} else {
alert("Nothing to copy!");
}
});

Code: Select all

body {
font-family: Montserrat, sans-serif;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
background: #7C8483;
}

.container {
text-align: center;
}

.header {
font-size: 1.5rem;
font-weight: bold;
color: #fff;
margin-bottom: 15px;
}

.calculator {
width: 300px;
background-color: #ffffff;
border-radius: 10px;
box-shadow: 0 4px 10px rgba(0, 0, 0, 3);
overflow: hidden;
}

.calculation {
font-size: 1.2rem;
padding: 10px;
text-align: right;
color: #666;
background-color: #f4f4f4;
border-bottom: 1px solid #e0e0e0;
font-style: italic;
}
.calculation text {
display: inline-block;
}

.display {
font-size: 2rem;
padding: 15px;
text-align: right;
background-color: #28262C;
color: #F1FFFA;
}

.buttons {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 0;
}

.btn {
padding: 20px;
font-size: 1.2rem;
border: 0.1px solid #222;
background-color: #28262C;
cursor: pointer;
transition: all 0.5s ease-in-out;
color: #F1FFFA;
}

.btn:hover {
background-color: #28263c;
}

.operator {
border: 0.1px solid #345;
background-color: #364156;
color: #F1FFFA;
}

.operator:hover {
background-color: #364166;
}

.clear {
background-color: #364156;
color: #F1FFFA;
}

.clear:hover {
background-color: firebrick;
}

.equals {
grid-column: span 2;
background-color: #28262C;
color: #F1FFFA;
}

.equals:hover {
background-color: #28263C;
}

.copy-result {
margin-top: 10px;
}

.copy {
text-decoration: none;
background-color: #f4f4f4;
border: none;
opacity: 50;
transition: 0.5s ease-in-out;
border-radius: 10px;
height: 30px;
width: 30px;
float: left;
}

.copy:hover {
cursor: pointer;
background-color: gainsboro;

}
/* modal */
.modal {
display: none;  /* Hidden by default */
position: fixed;
z-index: 1000;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
background-color: #fff;
margin: 15% auto;
padding: 20px;
border: 1px solid #888;
border-radius: 8px;
width: 300px;
text-align: center;
}

.close {
color: #aaa;
float: right;
font-size: 28px;
font-weight: bold;
cursor: pointer;
transition: 0.5s;
}

.close:hover {
color: black;
}

#rootInput {
width: 90%;
padding: 10px;
margin-bottom: 10px;
}

#submitRoot {
padding: 10px 20px;
background-image: linear-gradient(to bottom right, #4CAF50, #4CEF50);
color: white;
border: none;
border-radius: 5px;
cursor: pointer;
}

.filler:hover {
cursor: default;
color:white;
}

Code: Select all

Calculator






×
Enter the Root Degree
[i]
Submit




0
[/i]

0

7
8
9
÷

4
5
6
×

1
2
3
−

0
.
AC
+

=
^
√
DEL

(
)

Code: Select all

calcString = calcString.slice(-1);