@tldraw/store
Version:
tldraw infinite canvas SDK (store).
34 lines (33 loc) • 797 B
JavaScript
function intersectSets(sets) {
if (sets.length === 0) return /* @__PURE__ */ new Set();
const first = sets[0];
const rest = sets.slice(1);
const result = /* @__PURE__ */ new Set();
for (const val of first) {
if (rest.every((set) => set.has(val))) {
result.add(val);
}
}
return result;
}
function diffSets(prev, next) {
const result = {};
for (const val of next) {
if (!prev.has(val)) {
result.added ??= /* @__PURE__ */ new Set();
result.added.add(val);
}
}
for (const val of prev) {
if (!next.has(val)) {
result.removed ??= /* @__PURE__ */ new Set();
result.removed.add(val);
}
}
return result.added || result.removed ? result : void 0;
}
export {
diffSets,
intersectSets
};
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