fix: 🐛 error on IE while running native findIndex (#80)

Author: diogofcunha

.gitignore

@@ -6,4 +6,5 @@
 /umd
 npm-debug.log*
 /gh-pages
-package-lock.json
+package-lock.json
+yarn-error.log

package.json

@@ -25,6 +25,7 @@
     "classnames": "^2.2.5",
     "lodash": "^4.17.4",
     "lodash.debounce": "^4.0.8",
+    "lodash.findindex": "^4.6.0",
     "lodash.isequal": "^4.5.0",
     "lodash.omit": "^4.5.0",
     "material-icons": "^0.1.0",

src/selectors/nodes.js

@@ -1,5 +1,6 @@
 import {createSelector} from 'reselect';
 import omit from 'lodash.omit';
+import findIndex from 'lodash.findindex';
 
 import {UPDATE_TYPE} from '../contants';
 
@@ -47,7 +48,7 @@ export const replaceNodeFromTree = (nodes, updatedNode, operation = NODE_OPERATI
     return NODE_CHANGE_OPERATIONS[operation](nodes, updatedNode);
   }
 
-  const parentIndex = nodes.findIndex(n => n.id === parents[0]);
+  const parentIndex = findIndex(nodes, n => n.id === parents[0]);
   const preSiblings = nodes.slice(0, parentIndex);
   const postSiblings = nodes.slice(parentIndex + 1);
 
@@ -94,4 +95,4 @@ export const addNode = node => ({
   type: UPDATE_TYPE.ADD,
 });
 
-export const getRowIndexFromId = (flattenedTree, id) => flattenedTree.findIndex(node => node.id === id);
+export const getRowIndexFromId = (flattenedTree, id) => findIndex(flattenedTree, node => node.id === id);

yarn.lock

@@ -6191,6 +6191,11 @@ lodash.debounce@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
 
+lodash.findindex@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.findindex/-/lodash.findindex-4.6.0.tgz#a3245dee61fb9b6e0624b535125624bb69c11106"
+  integrity sha1-oyRd7mH7m24GJLU1ElYku2nBEQY=
+
 lodash.flattendeep@^4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/lodash.flattendeep/-/lodash.flattendeep-4.4.0.tgz#fb030917f86a3134e5bc9bec0d69e0013ddfedb2"