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@atlaskit/tree

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A React Component for displaying expandable and sortable tree hierarchies

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import _defineProperty from "@babel/runtime/helpers/defineProperty"; function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; } function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } /* Changes the tree data structure with minimal reference changes. */ export var mutateTree = function mutateTree(tree, itemId, mutation) { var itemToChange = tree.items[itemId]; if (!itemToChange) { // Item not found return tree; } // Returning a clone of the tree structure and overwriting the field coming in mutation return { // rootId should not change rootId: tree.rootId, items: _objectSpread(_objectSpread({}, tree.items), {}, _defineProperty({}, itemId, _objectSpread(_objectSpread({}, itemToChange), mutation))) }; };