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water-management-system/frontend/node_modules/quickselect
bot_dev1 85df71fc28 feat: 实现供水运营专题大屏BI可视化
- 新增OperationDashboard.vue全屏大屏组件
- 添加6个核心KPI指标卡片: 进水总量/出水总量/产销差率/营收额/平均水质/报警次数
- 实现6个ECharts图表: 供水趋势/水质分布/报警统计/管网空间/设备状态/营收分析
- 创建静态HTML版本operation-dashboard.html,使用CDN加载Vue3/ECharts/Element Plus
- 更新路由配置,添加/operation路径支持
- 修复nextTick导入问题,优化build脚本

🚧 开发者: bot_dev1
📝 任务: #38 [BI] 运营仪表盘 + 供水专题大屏
2026-06-15 09:06:11 +08:00
..

quickselect

A tiny and fast selection algorithm in JavaScript (specifically, Floyd-Rivest selection).

quickselect(array, k[, left, right, compareFn]);

Rearranges items so that all items in the [left, k] are the smallest. The k-th element will have the (k - left + 1)-th smallest value in [left, right].

  • array: the array to partially sort (in place)
  • k: middle index for partial sorting (as defined above)
  • left: left index of the range to sort (0 by default)
  • right: right index (last index of the array by default)
  • compareFn: compare function

Example:

const arr = [65, 28, 59, 33, 21, 56, 22, 95, 50, 12, 90, 53, 28, 77, 39];

quickselect(arr, 8);

// arr is [39, 28, 28, 33, 21, 12, 22, 50, 53, 56, 59, 65, 90, 77, 95]
//                                         ^^ middle index