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41 lines
1.5 KiB
41 lines
1.5 KiB
3 years ago
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"use strict";
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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var __spreadArray = (this && this.__spreadArray) || function (to, from) {
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for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
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to[j] = from[i];
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return to;
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};
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exports.__esModule = true;
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function mergeUnique(key, uniques, getter) {
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var uniquesSet = new Set(uniques);
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return function (a, b, k) {
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return (k === key) && Array.from(__spreadArray(__spreadArray([], __read(a)), __read(b)).map(function (it) { return ({ key: getter(it), value: it }); })
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.map(function (_a) {
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var key = _a.key, value = _a.value;
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return ({ key: (uniquesSet.has(key) ? key : value), value: value });
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})
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.reduce(function (m, _a) {
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var key = _a.key, value = _a.value;
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m["delete"](key); // This is required to preserve backward compatible order of elements after a merge.
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return m.set(key, value);
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}, new Map())
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.values());
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};
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}
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exports["default"] = mergeUnique;
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//# sourceMappingURL=unique.js.map
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