Freaks City

When working with a shared layer tree in a WebGIS application, you may need to remove empty directories so the tree can be used directly with a UI component like Element's Cascader. The goal is to produce a new array where only folders containing at least one layer are kept, and each layer node has its children set to null. The original tree da ...

Element UI's el-cascader cmoponent returns selected value by default. To retrieve the corresponding display label text, use the getCheckedNodes() instance method. For region selection with three hierarchical levels (province → city → district), the cascader is configured with lazy loading to fetch options dynamically: <el-cascader v-model= ...

Building upon Element UI 2.15.14, this customization introduces a specialized multi-selection mode that restricts selection to terminal nodes only. This enhancement is particularly useful for hierarchical data structures where intermediate nodes serve purely as containers. Installation Install the extended package via npm: npm install @corp/ele ...