Adds optional chaining. (mattermost#869)

mattermost-build · Jun 26, 2019 · 6192972 · 6192972
1 parent 86146ba
commit 6192972
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Showing 4 changed files with 24 additions and 3 deletions.
diff --git a/babel.config.js b/babel.config.js
@@ -18,6 +18,7 @@ module.exports = {
     plugins: [
         '@babel/transform-flow-comments',
         '@babel/proposal-class-properties',
+        '@babel/plugin-proposal-optional-chaining',
         ['module-resolver', {
             root: ['./src', '.'],
         }],

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -31,6 +31,7 @@
     "@babel/cli": "7.4.4",
     "@babel/core": "7.4.5",
     "@babel/plugin-proposal-class-properties": "7.4.4",
+    "@babel/plugin-proposal-optional-chaining": "^7.2.0",
     "@babel/plugin-transform-flow-comments": "7.4.4",
     "@babel/preset-env": "7.2.0",
     "@babel/register": "7.4.4",

diff --git a/src/selectors/entities/groups.js b/src/selectors/entities/groups.js
@@ -46,9 +46,9 @@ export function getGroupMembers(state, id) {
     return groupMemberData.members;
 }
 
-const teamGroupIDs = (state, teamID) => state.entities.teams.groupsAssociatedToTeam[teamID].ids || [];
+const teamGroupIDs = (state, teamID) => state.entities.teams.groupsAssociatedToTeam[teamID]?.ids || [];
 
-const channelGroupIDs = (state, channelID) => state.entities.channels.groupsAssociatedToChannel[channelID].ids || [];
+const channelGroupIDs = (state, channelID) => state.entities.channels.groupsAssociatedToChannel[channelID]?.ids || [];
 
 const getTeamGroupIDSet = createSelector(
     teamGroupIDs,