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autocomplete.js
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autocomplete.js
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const createAutoComplete = ({
root,
renderOption,
onOptionSelect,
inputValue,
fetchData
}) => {
root.innerHTML = `
<label><b>Search</b></label>
<input class="input" />
<div class="dropdown">
<div class="dropdown-menu">
<div class="dropdown-content results"></div>
</div>
</div>
`;
const input = root.querySelector("input");
const dropdown = root.querySelector(".dropdown");
const resultsWrapper = root.querySelector(".results");
const onInputChange = async e => {
const items = await fetchData(e.target.value);
if (!items.length) {
dropdown.classList.remove("is-active");
return;
}
resultsWrapper.innerHTML = "";
dropdown.classList.add("is-active");
items.map(item => {
const option = document.createElement("a");
option.classList.add("dropdown-item");
option.innerHTML = renderOption(item);
option.addEventListener("click", () => {
dropdown.classList.remove("is-active");
input.value = inputValue(item);
onOptionSelect(item);
});
resultsWrapper.appendChild(option);
});
};
input.addEventListener("input", debounce(onInputChange, 500));
document.addEventListener("click", e => {
if (!root.contains(e.target)) {
dropdown.classList.remove("is-active");
}
});
};