按属性过滤要素
此示例演示如何在客户端按属性过滤要素。这可以通过创建新FeatureFilter 并指定其 where 子句，然后将过滤器对象应用于图层视图的过滤器属性来完成。
工作原理
示例按发出季节过滤山洪暴发警告。要查看不同季节发出的山洪暴发警告，请点击 filter 按钮，然后选择一个季节。
The action has been successful此示例演示如何在客户端按属性过滤要素。这可以通过创建新FeatureFilter 并指定其 where 子句，然后将过滤器对象应用于图层视图的过滤器属性来完成。
示例按发出季节过滤山洪暴发警告。要查看不同季节发出的山洪暴发警告，请点击 filter 按钮，然后选择一个季节。
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// User clicked on Winter, Spring, Summer or Fall
// set an attribute filter on flood warnings layer view
// to display the warnings issued in that season
function filterBySeason(event) {
const selectedSeason = event.target.getAttribute("data-season");
floodLayerView.filter = {
where: "Season = '" + selectedSeason + "'"
};
}
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The action has been successful