wishthis/node_modules/rxjs/dist/esm/internal/operators/pluck.js
2022-06-08 12:36:39 +02:00

21 lines
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643 B
JavaScript

import { map } from './map';
export function pluck(...properties) {
const length = properties.length;
if (length === 0) {
throw new Error('list of properties cannot be empty.');
}
return map((x) => {
let currentProp = x;
for (let i = 0; i < length; i++) {
const p = currentProp === null || currentProp === void 0 ? void 0 : currentProp[properties[i]];
if (typeof p !== 'undefined') {
currentProp = p;
}
else {
return undefined;
}
}
return currentProp;
});
}
//# sourceMappingURL=pluck.js.map