How to use 'javascript sum table row' in JavaScript

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function rowsums(mm) {
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    var mmlen = mm.length;
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    sumOfRows = new Array(mmlen);
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    var sumR = 0;
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    for (var row = 0; row < mmlen; row++) {
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        for (var col = 0; col < mmlen; col++) {
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            sumR += mm[row][col];
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            totedges = totedges + (mm[row][col] / 2);
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        }
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        sumOfRows[row] = sumR;
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        sumR = 0;
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    }
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    totedges = totedges - (2 * (mmlen - 1));
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    return sumOfRows;
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}

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attachMatrixSumRows() {
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  $(this.el).on('change keyup', 'table.sdj-sum-rows input.sdj-numeric', (e) => {
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    const $tr = $(e.target).parents('tr');
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    const sumValue = $tr.find('input.sdj-numeric:not([readonly])')
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      .toArray()
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      .reduce((prev, curr) => prev + parseInteger(curr.value, 0), 0);
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    const $sumEl = $tr.find('.sdj-sum');
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    $sumEl.val(sumValue);
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  });
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}