55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
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// https://github.com/Terminux/react-csv-downloader/blob/master/src/lib/csv.js
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const newLine = '\r\n';
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export default function csv(columns, datas, separator = ',', noHeader = false) {
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let columnOrder;
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const content = [];
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const column = [];
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if (columns) {
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columnOrder = columns.map(v => {
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if (typeof v === 'string') {
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return v;
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}
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if (!noHeader) {
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column.push((typeof v.title !== 'undefined') ? v.title : v.key);
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}
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return v.key;
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});
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if (column.length > 0) {
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content.push(column.join(separator));
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}
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} else {
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columnOrder = [];
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datas.forEach(v => {
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if (!Array.isArray(v)) {
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columnOrder = columnOrder.concat(Object.keys(v));
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}
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});
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if (columnOrder.length > 0) {
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columnOrder = columnOrder.filter((value, index, self) => self.indexOf(value) === index);
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if (!noHeader) {
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content.push(columnOrder.join(separator));
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}
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}
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}
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if (Array.isArray(datas)) {
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datas.map(v => {
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if (Array.isArray(v)) {
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return v;
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}
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return columnOrder.map(k => {
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if (typeof v[k] !== 'undefined') {
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return v[k];
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}
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return '';
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});
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}).forEach(v => {
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content.push(v.join(separator));
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});
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}
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return content.join(newLine);
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}
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