Extra table cells generated when using `colspan` > 1 in Node.js

[fallon-evernorth]

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Issue Category

• [ ] Enhancement
• [ ] Bug
• [x] Question
• [ ] Documentation gap/issue

Product Versions

• Please specify what version of the library you are using......: [3.12.0]
• Please specify what version(s) of PowerPoint you are targeting: [16.77.1]
• Please specify what web browser you are using.................: [Node.js server]

Desired Behavior

When using the colspan option and setting the value >1 (ex. for cells in a header row), there should not be extra empty cells or entire empty columns generated.

Observed Behavior

Extra empty cells generated.

(I am getting a 403 forbidden here when attempting to upload a screenshot.)

Steps to Reproduce

Example code run in Node.js:

const pptxGenJS = new PptxGenJS();
let pptSlide = pptxGenJS.addSlide();

let arrTabRows1 = [
    [
        { text: 'A1\nA2', options: { rowspan: 2, fill: { color: '99FFCC' } } },
        { text: 'B1' },
        { text: 'C1 -> D1', options: { colspan: 2, fill: { color: '99FFCC' } } },
        { text: 'E1' },
        { text: 'F1\nF2\nF3', options: { rowspan: 3, fill: { color: '99FFCC' } } }
    ],
    [{text:'B2'}, {text:'C2'},{text:'D2'}, {text:'E2'}],
    [{text:'A3'}, {text:'B3'}, {text:'C3'}, {text:'D3'}, {text:'E3'}]
];

pptSlide.addTable(arrTabRows1, newOptions);

const newOptions = {
    x: 0.67,
    y: 1.1,
    w: '90%',
    h: 2,
    fill: { color: 'F9F9F9' },
    color: '3D3D3D',
    fontSize: 16,
    border: { pt: 4, color: 'FFFFFF' },
    align: 'center',
    valign: 'middle'
};

pptxGenJS.writeFile({
            fileName: `test.pptx`
});