@antv/g2
Version:
the Grammar of Graphics in Javascript
24 lines • 758 B
JavaScript
import { normalizeFields } from './utils/fields';
/**
* Immutable data sort by specified fields.
*/
export const SortBy = (options) => {
const { fields: F = [] } = options;
const normalizedF = normalizeFields(F, true);
return (data) => {
const comparator = (a, b) => normalizedF.reduce((ret, [field, order = true]) => {
if (ret !== 0) {
return ret;
}
if (order) {
return a[field] < b[field] ? -1 : +(a[field] !== b[field]);
}
else {
return a[field] > b[field] ? -1 : +(a[field] !== b[field]);
}
}, 0);
return [...data].sort(comparator);
};
};
SortBy.props = {};
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