1. 首先在 webmap.json 或者 SceneView 中添加 “snappingOptions” 属性，该属性会告诉编辑组件加载哪些图层：

// Create a Map
let map = new Map({
  basemap: "streets",
  layers: [featureLayer],
  snappingOptions: { // Add snapping options
    enabled: true,
    pixelTolerance: 15,
    snapToPoint: true
    snapToVertex: true,
    layerInfos: [
      { // Configure snapping properties for each layer
        layer: featureLayer
      }
    ]
  }
});

// Create a SceneView
let view = new SceneView({
  map: map,
  container: "viewDiv"
});

2. 为编辑组件设置是否启用 “snapping”：

// Enables snapping while editing
editViewModel.snappingOptions = {
  enabled: true
};

// Disables snapping while editing
editViewModel.snappingOptions = {
  enabled: false
};

这样就可以在 ArcGIS JS 4.24 编辑组件中加载“Snapping Layers”了。