XMATCH

$(document).ready(function () {
    // Initializing Spread
    var spread = new GC.Spread.Sheets.Workbook(document.getElementById('ss'), { sheetCount: 1 });
    // Enable dynamic array support
    spread.options.allowDynamicArray = true;
    // Get the activeSheet
    var sheet = spread.getSheet(0);
    // Set column width
    sheet.setColumnWidth(6, 160);

    // Create formula
    var formula_Exact = '=XMATCH(G4,A5:A9)';
    var formula_Approx = '=XMATCH(G10,D5:D9,1)';
    var formula_MultipleValues = '=XMATCH({5,4,1},C5:C9)';

    // Set value
    sheet.setValue(0, 6, 'Basic exact match');
    sheet.setValue(1, 6, formula_Exact);
    sheet.setValue(6, 6, 'Basic approximate match');
    sheet.setValue(7, 6, formula_Approx);
    sheet.setValue(12, 6, 'MultipleValues');
    sheet.setValue(13, 6, formula_MultipleValues);
    // Create data
    var data = [
        ["Movie", "Year", "Rank", "Sales"],
        ["Fargo", 1996, 5, 61],
        ["L.A. Confidential", 1997, 4, 126],
        ["The Sixth Sense", 1999, 1, 673],
        ["Toy Story", 1995, 2, 362],
        ["Unforgiven", 1992, 3, 159]
    ];
    // Set data
    sheet.setArray(3, 0, data);
    // Set value
    sheet.setValue(3, 5, 'Movie');
    sheet.setValue(4, 5, 'Position');
    sheet.setValue(3, 6, 'Toy Story');
    // Set formula
    sheet.setFormula(4, 6, formula_Exact);

    // Set value
    sheet.setValue(9, 5, 'Sales');
    sheet.setValue(10, 5, 'Position');
    sheet.setValue(9, 6, 400);
    // Set formula
    sheet.setFormula(10, 6, formula_Approx);

    // Set value
    sheet.setValue(15, 5, 'Rank');
    sheet.setValue(16, 5, 'Position');
    sheet.setValue(15, 6, '{5,4,1}');
    // Set formula
    sheet.setFormula(16, 6, formula_MultipleValues);

});