Access to the Input Data Sets

For access to the data of Input data source[N] ports, InputTables[] and InputTable objects are used. The port data source is accessed by its number:

InputTables[N] where N is a port number (index). The first port has 0 index.

As the first port is in the JavaScript node by default, there is a separate InputTable object to provide access to its data.

Data Source Properties

Data Source Methods

Examples:

import { InputTable, InputTables } from "builtIn/Data";

let inputTable0 = InputTables[0],              // Source of the data from port No 1
    inputTable1 = InputTables[1];              // Source of the data from port No 2
let colOutlook0 = inputTable0.Columns.OUTLOOK, // Getting reference to the column by name
    colOutlook1 = inputTable1.Columns[1];      // Getting reference to the column by index

// Getting the columns array from the Columns object
let arrayOfColumns = Array.from(InputTable.Columns);
// Outputting the values of the columns properties to the console
arrayOfColumns.forEach(column => {
    console.log("Index: ", column.Index);
    console.log("Name: ", column.Name);
    console.log("DisplayName: ", column.DisplayName);
    console.log("DataType: ", column.DataType);
    console.log("DataKind: ", column.DataKind);
    console.log("DefaultUsageType: ", column.DefaultUsageType);
    console.log("RowCount: ", column.RowCount);
    console.log("");
});

// Getting the values array from the "CLASS" column
let arrayOfColumnValues = Array.from(InputTable.Columns["CLASS"]);
// Outputting the values of the "CLASS" column
arrayOfColumnValues.forEach((value, index) => {
    console.log(index, ":", value);
});

// Reading the values from the input table using the Get method
for (let i = 0, с = InputTable.RowCount; i < с; i++) {
    // Outputting the values of the column with 0 index
    console.log(`InputTable.Get(${i}, 0) = `, InputTable.Get(i, 0));
    // Outputting the values of the column with the "CLASS" name
    console.log(`InputTable.Get(${i}, "CLASS") = `, InputTable.Get(i, "CLASS"));
}