This dialog allows you to construct a JavaScript expression using the columns of the table.
- Double-click on a column item to insert an expression at the cursor position in the Label Expression box.
- If text is selected in the Label Expression box, double-click on a column item to replace the selected text with the expression.
- The column name when inserted in the Label Expression box is preceded by f.properties. This string is required for deck.gl to evaluate the expression.
- You can use any valid JavaScript language or libraries that are a part of the deck.gl package.
- Currently, there is no way to validate the expression in the dialog.