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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<!-- Address form adding and removing nodes dynamically on user input -->
<form id="address-form-node-addition">
<label for="name-node-addition">Name</label>
<input type="text" id="name-node-addition" autocomplete="name">
<label for="email-node-addition">Email</label>
<input type="email" id="email-node-addition" autocomplete="email">
<label for="phone-node-addition">Phone</label>
<input type="tel" id="phone-node-addition" autocomplete="tel">
<label for="country-node-addition">Country</label>
<input type="text" id="country-node-addition" autocomplete="country">
<div id="address-extra-fields-node-addition"></div>
</form>
<!-- Credit card form adding and removing nodes dynamically on user input -->
<form id="cc-form-node-addition">
<label for="cc-number-node-addition">Credit Card Number</label>
<input id="cc-number-node-addition" autocomplete="cc-number">
<div id="cc-extra-fields-node-addition"></div>
</form>
<!-- Address form toggling the visibility state dynamically for some elements on user input -->
<form id="address-form-visibility-change">
<label for="name-visibility-change">Name</label>
<input type="text" id="name-visibility-change" autocomplete="name">
<label for="email-visibility-change">Email</label>
<input type="email" id="email-visibility-change" autocomplete="email">
<label for="organization-visibility-change">Phone</label>
<input type="tel" id="organization-visibility-change" autocomplete="tel" />
<label for="country-visibility-change">Country</label>
<input type="text" id="country-visibility-change" autocomplete="country">
<label for="street-address-visibility-change">Street Address</label>
<input type="text" id="street-address-visibility-change" autocomplete="street-address" hidden/>
<label for="address-level1-visibility-change">Address Level 1</label>
<input type="text" id="address-level1-visibility-change" autocomplete="address-level1" hidden/>
<label for="address-level2-visibility-change">Address Level 2</label>
<input type="text" id="address-level2-visibility-change" autocomplete="address-level2" hidden/>
<label for="postal-code-visibility-change">Postal Code</label>
<input type="text" id="postal-code-visibility-change" autocomplete="postal-code" hidden/>
</form>
<!-- Credit card form toggling the visibility state dynamically for some elements on user input -->
<form id="cc-form-visibility-change">
<label for="cc-number-visibility-change">Credit Card Number</label>
<input id="cc-number-visibility-change" autocomplete="cc-number">
<label for="cc-name-visibility-change">Cardholder Name</label>
<input id="cc-name-visibility-change" autocomplete="cc-name" hidden>
<label for="cc-exp-month-visibility-change">Expiration Month</label>
<input id="cc-exp-month-visibility-change" autocomplete="cc-exp-month" hidden>
<label for="cc-exp-year-visibility-change">Expiration Year</label>
<input id="cc-exp-year-visibility-change" autocomplete="cc-exp-year" hidden>
</form>
</body>
<script>
const addField = (parent, id, labelText, autocomplete) => {
const label = document.createElement('label');
label.htmlFor = id;
label.textContent = labelText;
const input = document.createElement('input');
input.id = id;
input.type = "text";
input.autocomplete = autocomplete;
parent.appendChild(label);
parent.appendChild(input);
return input;
}
const ccNumberInputNodeAddition = document.getElementById("cc-number-node-addition");
ccNumberInputNodeAddition.addEventListener('input', (event) => {
let ccFields = document.getElementById("cc-extra-fields-node-addition");
if (event.target.value != "") {
addField(ccFields, "cc-name-node-addition", "Cardholder Name", "cc-name");
addField(ccFields, "cc-exp-month-node-addition", "Expiration Month", "cc-exp-month");
addField(ccFields, "cc-exp-year-node-addition", "Expiration Year", "cc-exp-year");
} else {
while (ccFields.firstChild) {
ccFields.firstChild.remove()
}
}
});
const countryInputNodeAddition = document.getElementById("country-node-addition");
countryInputNodeAddition.addEventListener('input', (event) => {
let addressFields = document.getElementById("address-extra-fields-node-addition");
if (event.target.value != "") {
addField(addressFields, "street-address-node-addition", "Street Address", "street-address");
addField(addressFields, "address-level1-node-addition", "Address Level 1", "address-level1");
addField(addressFields, "address-level2-node-addition", "Address Level 2", "address-level2");
addField(addressFields, "postal-code-node-addition", "Postal Code", "postal-code");
} else {
while (addressFields.firstChild) {
addressFields.firstChild.remove()
}
}
});
const countryInputVisibilityChange = document.getElementById("country-visibility-change");
countryInputVisibilityChange.addEventListener('input', (event) => {
if (event.target.value != "") {
document.getElementById("street-address-visibility-change").hidden = false;
document.getElementById("address-level1-visibility-change").hidden = false;
document.getElementById("address-level2-visibility-change").hidden = false;
document.getElementById("postal-code-visibility-change").hidden = false;
} else {
document.getElementById("street-address-visibility-change").hidden = true;
document.getElementById("address-level1-visibility-change").hidden = true;
document.getElementById("address-level2-visibility-change").hidden = true;
document.getElementById("postal-code-visibility-change").hidden = true;
}
});
const ccNumberInputVisibilityChange = document.getElementById("cc-number-visibility-change");
ccNumberInputVisibilityChange.addEventListener('input', (event) => {
if (event.target.value != "") {
document.getElementById("cc-name-visibility-change").hidden = false;
document.getElementById("cc-exp-month-visibility-change").hidden = false;
document.getElementById("cc-exp-year-visibility-change").hidden = false;
} else {
document.getElementById("cc-name-visibility-change").hidden = true;
document.getElementById("cc-exp-month-visibility-change").hidden = true;
document.getElementById("cc-exp-year-visibility-change").hidden = true;
}
});
</script>
</html>
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