Question

我已从v 1.0.8升级到Angular 1.2.9以帮助我的应用程序的性能。

我已经介绍了提高速度的轨道。

我曾经拥有的

<div class="result row"
    data-ng-repeat="result in (filteredItems =
            (results |
            filter: filterPrice |
            filter: filterCategories |
            filter: filterTypes |
            filter: filterAirConditioning |
            filter: filterTransmission |
            filter: filterFourByFour |
            filter: filterFuelType |
            filter: filterNumberOfDoors |
            filter: filterOnAirport |
            filter: filterFuelPolicy |
            filter: filterUnlimitedMileage |
            filter: filterFreeCancellation |
            filter: filterTheftProtection |
            filter: filterCDW |
            filter: filterTaxesIncluded |
            filter: filterProviders ) )  |
        orderBy: [orderByOptions, orderByPriceLowToHigh, orderByPriority] |
        limitTo: pageSize">

我现在拥有什么

<div class="result row"
    data-ng-repeat="result in results |
        filter: filterPrice |
        filter: filterCarCategories |
        filter: filterCarTypes |
        filter: filterAirConditioning |
        filter: filterTransmission |
        filter: filterFourByFour |
        filter: filterFuelType |
        filter: filterNumberOfDoors |
        filter: filterOnAirport |
        filter: filterFuelPolicy |
        filter: filterUnlimitedMileage |
        filter: filterFreeCancellation |
        filter: filterTheftProtection |
        filter: filterCDW |
        filter: filterTaxesIncluded |
        filter: filterProviders |
        orderBy: [orderByOptions, orderByPriceLowToHigh, orderByPriority] |
        startFrom: currentPage*pageSize |
        limitTo: pageSize track by $index">

我有分页查找filterItems的长度。那不再存在。此外，其他一些JS需要filteredItems进行日志记录，分析等

在HTML视图中，我可以在应用过滤器后得到ng-repeat的长度

{{(results |
    filter: filterPrice |
    filter: filterCarCategories |
    filter: filterCarTypes |
    filter: filterAirConditioning |
    filter: filterTransmission |
    filter: filterFourByFour |
    filter: filterFuelType |
    filter: filterNumberOfDoors |
    filter: filterOnAirport |
    filter: filterFuelPolicy |
    filter: filterUnlimitedMileage |
    filter: filterFreeCancellation |
    filter: filterTheftProtection |
    filter: filterCDW |
    filter: filterTaxesIncluded |
    filter: filterProviders)
    .length}}

这有点拗口，但确实返回了我想要的数字。如何将其传递给$ scope？

Answer 1

您可以创建一个包含已过滤数组的中间变量：

data-ng-repeat="result in filteredResults = (results | filter:filterPrice | filter:filterCarCategories | etc.)"

然后可以使用：

filteredResults.length

角度获得过滤的ng-重复的长度

1 个答案: