JavaScript 1. Parsing a document
1.1. Providing the source
1.2. Localized errors
1.3. Error formats
1.4. Cursor lookup
2. Querying content
2.1. Field values
2.2. List values
2.3. Keys and Comments
2.4. Predefined Types
2.5. Custom Types
3. Querying elements
3.1. Optional/required
3.2. Dynamic layouts
3.3. Requiring all elements
4. Touching elements
4.1. Assert all touched
4.2. Manual touching
5. Error Metadata
5.1. Message
5.2. Text
5.3. Snippet
5.4. Cursor
5.5. Selection
6. Addendum
6.1. A complete example
6.2. AST inspection
6.3. FAQ

Selection

Returns a selection range object indicating what text area to select if an application wants to offer the user a way to select the parts in a document affected by the error.

try {
  // ...
} catch(err) {
  if(err instanceof EnoError) {
    // The selection as a one-dimensional string-index range
    err.selection.from.index;  // e.g. 56 
    err.selection.to.index;    // e.g. 78
    
    // The selection as a line/column range
    err.selection.from.line;    // e.g. 3
    err.selection.from.column;  // e.g. 14
    err.selection.to.line;      // e.g. 3
    err.selection.to.column;    // e.g. 32
  }
}

Next page: Addendum