13 lines
442 B
JavaScript
13 lines
442 B
JavaScript
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import { computeValue } from "../../core";
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const $shift = (obj, collection, expr, options) => {
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const input = expr.inputExpr;
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const shiftedIndex = expr.documentNumber - 1 + input.by;
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if (shiftedIndex < 0 || shiftedIndex > collection.length - 1) {
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return input.default ? computeValue(obj, input.default, null, options) : null;
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}
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return computeValue(collection[shiftedIndex], input.output, null, options);
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};
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export {
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$shift
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};
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