56 lines
1.2 KiB
TypeScript
56 lines
1.2 KiB
TypeScript
/**
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* Column type enumeration
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*/
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export const ColumnType = {
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STRING: 'string',
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NUMBER: 'number',
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BOOLEAN: 'boolean',
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DATE: 'date'
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};
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/**
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* The data table contains column information and data for the chart.
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*/
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export const DataTable = function () {
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const columns = [];
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let data = null;
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this.addColumn = function (type, name) {
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columns.push({
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'type': type,
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'name': name
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});
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};
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this.getColumns = function () {
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return columns;
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};
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this.setData = function (rows) {
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data = rows;
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fillMissingValues();
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};
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this.getData = function () {
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return data;
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};
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const fillMissingValues = function () {
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if (columns.length === 0) {
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throw new Error('Set columns first');
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}
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let row;
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for (let i = 0; i < data.length; i++) {
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row = data[i];
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if (row.length > columns.length) {
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row.splice(columns.length - 1, row.length - columns.length);
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} else if (row.length < columns.length) {
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for (let j = row.length; j < columns.length; j++) {
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row.push(null);
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}
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}
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}
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};
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};
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