多个输入框联合搜索

如果你有多个输入框，并希望进行联合精准搜索，可以通过组合多个输入框的值来过滤数据。在JavaScript中，常见的做法是先收集每个输入框的值，然后使用这些值过滤数据。

示例：多个输入框联合精准搜索

假设有多个输入框用于过滤不同的属性（例如姓名、年龄和城市），你可以使用下面的代码来实现联合精准搜索：

<input type="text" id="nameSearch" placeholder="Search by name">
<input type="number" id="ageSearch" placeholder="Search by age">
<input type="text" id="citySearch" placeholder="Search by city">

<button onclick="searchData()">Search</button>

<ul id="results"></ul>

<script>
const data = [
    { id: 1, name: 'John', age: 30, city: 'New York' },
    { id: 2, name: 'Jane', age: 25, city: 'Los Angeles' },
    { id: 3, name: 'Mike', age: 35, city: 'Chicago' },
    { id: 4, name: 'Sara', age: 28, city: 'San Francisco' },
];

function searchData() {
    const nameTerm = document.getElementById('nameSearch').value.toLowerCase();
    const ageTerm = document.getElementById('ageSearch').value;
    const cityTerm = document.getElementById('citySearch').value.toLowerCase();

    // 联合过滤
    const filteredData = data.filter(item => {
        return (!nameTerm || item.name.toLowerCase().includes(nameTerm)) &&
               (!ageTerm || item.age == ageTerm) &&
               (!cityTerm || item.city.toLowerCase().includes(cityTerm));
    });

    displayResults(filteredData);
}

function displayResults(results) {
    const resultsContainer = document.getElementById('results');
    resultsContainer.innerHTML = '';

    results.forEach(item => {
        const li = document.createElement('li');
        li.textContent = `${item.name}, ${item.age}, ${item.city}`;
        resultsContainer.appendChild(li);
    });
}
</script>