41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
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export default function flatten (data, keepArray = false) { // flatten object: {a: {b: true}} -> {a.b: true}
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const result = {};
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function recurse (cur, prop) {
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if (Object(cur) !== cur || Object.keys(cur).length === 0) {
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result[prop] = cur;
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}
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else if (prop === 'spectrum.dpt') {
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console.log('dpt');
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result[prop + '.labels'] = cur.map(e => e[0]);
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result[prop + '.values'] = cur.map(e => e[1]);
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}
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else if (Array.isArray(cur)) {
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if (keepArray) {
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result[prop] = cur;
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}
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else { // array to string
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if (cur.length && (Object(cur[0]) !== cur || Object.keys(cur[0]).length === 0)) { // array of non-objects
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result[prop] = '[' + cur.join(', ') + ']';
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}
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else {
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let l = 0;
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for(let i = 0, l = cur.length; i < l; i++)
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recurse(cur[i], prop + "[" + i + "]");
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if (l == 0)
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result[prop] = [];
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}
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}
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}
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else {
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let isEmpty = true;
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for (let p in cur) {
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isEmpty = false;
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recurse(cur[p], prop ? prop+"."+p : p);
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}
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if (isEmpty && prop)
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result[prop] = {};
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}
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}
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recurse(data, '');
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return result;
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}
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