Aurora Admin v1.2.0: 79 components x 5 ends, doc site, contracts batch 1, playground, regression, deploy ready
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aurora-admin
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Aurora Admin · Cascader (H5)</title>
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<link rel="stylesheet" href="../.design_library/aurora-admin/colors_and_type.css">
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<link rel="stylesheet" href="./Cascader.css">
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<style>
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.demo { padding: 24px; background: #F5F7FA; font-family: var(--font-family); }
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h1 { font-size: 20px; margin: 0 0 4px; color: #1F2329; }
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.sub { color: #8C8C8C; margin: 0 0 24px; font-size: 12px; }
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.demo-block { background: #fff; border-radius: 8px; padding: 24px; margin-bottom: 20px; }
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.demo-block > .hint { color: #8C8C8C; font-size: 12px; margin: 0 0 12px; }
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</style>
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</head>
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<body>
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<div class="demo">
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<h1>Aurora Admin · Cascader 组件（纯 H5）</h1>
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<p class="sub">对齐 Cascader 规范：多级下拉、搜索、路径显示、多选</p>
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<div class="demo-block">
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<p class="hint">单选 + 搜索</p>
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<div class="aa-cascader" data-cascader data-multiple="false"></div>
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</div>
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<div class="demo-block">
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<p class="hint">多选</p>
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<div class="aa-cascader" data-cascader data-multiple="true"></div>
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</div>
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</div>
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<script>
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const OPTIONS = [
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{ value: 'zj', label: '浙江', children: [
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{ value: 'hz', label: '杭州', children: [ { value: 'xh', label: '西湖区' }, { value: 'bj', label: '滨江区' } ] },
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{ value: 'wz', label: '温州', children: [ { value: 'lc', label: '鹿城区' } ] }
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] },
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{ value: 'js', label: '江苏', children: [
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{ value: 'nj', label: '南京', children: [ { value: 'xk', label: '玄武区' } ] }
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] }
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];
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function pathLabels(values) {
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let nodes = OPTIONS, labels = [];
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for (const v of values) {
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const n = nodes.find(x => x.value === v);
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if (!n) break;
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labels.push(n.label); nodes = n.children || [];
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}
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return labels;
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}
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function findNode(values) {
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let nodes = OPTIONS, node = null;
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for (const v of values) {
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node = nodes.find(x => x.value === v);
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if (!node) return null;
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nodes = node.children || [];
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}
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return node;
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}
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function flatten() {
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const out = [];
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(function walk(list, acc) {
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list.forEach(n => {
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const p = [...acc, n.value];
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if (n.children && n.children.length) walk(n.children, p);
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else out.push(p);
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});
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})(OPTIONS, []);
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return out;
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}
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function initCascader(root) {
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const multiple = root.dataset.multiple === 'true';
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let open = false;
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let activePath = [];
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let query = '';
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// single: value = 数组路径或 null ; multiple: value = 路径数组的数组
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let value = multiple ? [] : null;
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const trigger = document.createElement('div');
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trigger.className = 'aa-cascader-trigger';
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function renderTrigger() {
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if (multiple) {
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if (!value.length) { trigger.innerHTML = '<span class="placeholder">请选择</span><span class="caret">▾</span>'; }
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else {
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trigger.innerHTML = '<span class="aa-cascader-tags">' +
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value.map(p => `<span class="aa-cascader-tag">${pathLabels(p).join(' / ')}</span>`).join('') +
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'</span><span class="caret">▾</span>';
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}
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} else {
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trigger.innerHTML = (value ? `<span>${pathLabels(value).join(' / ')}</span>` : '<span class="placeholder">请选择</span>') + '<span class="caret">▾</span>';
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}
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trigger.classList.toggle('is-open', open);
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}
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function renderPanel() {
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let panel = root.querySelector('.aa-cascader-panel');
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if (!panel) { panel = document.createElement('div'); panel.className = 'aa-cascader-panel'; root.appendChild(panel); }
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if (query) {
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const results = flatten().filter(p => pathLabels(p).join('/').includes(query));
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panel.innerHTML = `<div class="aa-cascader-results">` +
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(results.length ? results.map(p => `<div class="aa-cascader-result" data-path='${JSON.stringify(p)}'>${pathLabels(p).join(' / ')}</div>`).join('') : '<div class="aa-cascader-empty">无匹配结果</div>') +
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`</div>`;
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panel.querySelectorAll('.aa-cascader-result').forEach(r => {
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r.addEventListener('click', () => {
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const p = JSON.parse(r.dataset.path);
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if (multiple) {
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const s = value.map(x => JSON.stringify(x));
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const k = JSON.stringify(p);
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if (s.includes(k)) value = value.filter(x => JSON.stringify(x) !== k);
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else value = [...value, p];
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renderTrigger();
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} else { value = p; open = false; renderTrigger(); renderPanel(); }
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});
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});
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return;
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}
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// 列视图
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let html = '';
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let levelNodes = OPTIONS, path = [];
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for (let lv = 0; lv <= activePath.length; lv++) {
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const col = levelNodes;
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html += '<div class="aa-cascader-col">';
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col.forEach(n => {
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const isActive = activePath[lv] === n.value;
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const hasChild = n.children && n.children.length;
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let box = '';
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if (multiple && !hasChild) {
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const sel = value.some(p => JSON.stringify(p) === JSON.stringify([...path, n.value].slice(0, [...path, n.value].length)));
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const checked = value.some(p => JSON.stringify(p) === JSON.stringify([...path, n.value]));
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box = `<span class="box">${checked ? '✓' : ''}</span>`;
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}
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html += `<div class="aa-cascader-opt ${isActive ? 'is-active' : ''}" data-lv="${lv}" data-val="${n.value}">${box}<span>${n.label}</span>${hasChild ? '<span class="arrow">›</span>' : ''}</div>`;
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});
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html += '</div>';
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if (lv < activePath.length) {
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const next = levelNodes.find(x => x.value === activePath[lv]);
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path = [...path, activePath[lv]];
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levelNodes = next.children || [];
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} else break;
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}
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panel.innerHTML = html;
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panel.querySelectorAll('.aa-cascader-opt').forEach(opt => {
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opt.addEventListener('click', () => {
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const lv = +opt.dataset.lv, val = opt.dataset.val;
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const node = findNode([...activePath.slice(0, lv), val]);
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const full = [...activePath.slice(0, lv), val];
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if (node && node.children && node.children.length) {
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activePath = full; renderPanel();
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} else {
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if (multiple) {
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const k = JSON.stringify(full);
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value = value.some(p => JSON.stringify(p) === k) ? value.filter(p => JSON.stringify(p) !== k) : [...value, full];
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renderTrigger();
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} else { value = full; open = false; renderTrigger(); renderPanel(); }
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}
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});
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});
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}
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trigger.addEventListener('click', (e) => {
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e.stopPropagation();
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open = !open; renderTrigger(); renderPanel();
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});
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root.appendChild(trigger);
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root.addEventListener('click', (e) => {
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const q = e.target.closest('.aa-cascader-search input');
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if (q) return;
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});
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// 搜索框（filterable）
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const search = document.createElement('div');
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search.className = 'aa-cascader-search';
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search.style.display = 'none';
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search.innerHTML = '<input placeholder="搜索"><div class="aa-cascader-results"></div>';
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search.querySelector('input').addEventListener('input', (e) => { query = e.target.value; renderPanel(); });
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root.appendChild(search);
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trigger.addEventListener('click', () => {
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search.style.display = open ? 'block' : 'none';
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if (open) search.querySelector('input').focus();
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});
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document.addEventListener('click', (e) => {
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if (!root.contains(e.target)) { open = false; query = ''; renderTrigger(); renderPanel(); search.style.display = 'none'; }
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});
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renderTrigger();
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}
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document.querySelectorAll('[data-cascader]').forEach(initCascader);
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</script>
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</body>
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</html>
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