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
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/**
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* Checks `value` to determine whether a default value should be returned in
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* its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
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* or `undefined`.
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*
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* @static
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* @memberOf _
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* @since 4.14.0
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* @category Util
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* @param {*} value The value to check.
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* @param {*} defaultValue The default value.
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* @returns {*} Returns the resolved value.
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* @example
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*
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* _.defaultTo(1, 10);
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* // => 1
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*
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* _.defaultTo(undefined, 10);
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* // => 10
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*/
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function defaultTo(value, defaultValue) {
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return (value == null || value !== value) ? defaultValue : value;
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}
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module.exports = defaultTo;
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