How to use

concat

function

in

LoDashStatic

  .then(others => _.concat(collaborators, others))
})

let oldWatchTagArr = _.concat([], oldWatchTag);
if (oldWatchTagArr.indexOf(tagId) >= 0 && followState == '1') {
  throw new Error(ctx.__("validate_error_repost"));

let oldDespiseArr = _.concat([], oldDespise);

    sort: sortObj
  })
  recContents = _.concat(recContents, leftContents);
  sort: sortObj
})
recContents = _.concat(recContents, leftContents);

let oldPraiseArr = _.concat([], oldPraise);
if (oldPraiseArr.indexOf(contentId) >= 0 && praiseState == 'in') {
  throw new Error(ctx.__("user_action_tips_repeat", [ctx.__('user_action_type_give_thumbs_up')]));

let userWatcherArr = _.concat([], targetWatcher.watchers);
let creatorFollowersArr = _.concat([], targetCreatorFollow.followers);

let oldFavoriteArr = _.concat([], oldFavorite);
if (oldFavoriteArr.indexOf(contentId) >= 0 && favoriteState == 'in') {
  throw new Error(ctx.__("user_action_tips_repeat", [ctx.__('user_action_type_give_favorite')]));

  .then(others => _.concat(commits, others))
})

$scope.mediaSelect({ limit: limit - $scope.extensions[key].length }, function (media) {
    $scope.extensions[key] = _.concat($scope.extensions[key], media);

    if (limit - $scope.extensions[key].length < 1) {
     $scope.disabledExtMediaAdd[key] = true;
    } else {
     $scope.disabledExtMediaAdd[key] = false;
    }
   });

handleTogglePermission(data){
    let self = this;
    let index = _.findIndex(self.state.permissionMap, function (role) { return role.role_id == data.role; });
    let currentPermissions = self.state.permissionMap[index].permission_ids;
    if(!data.yes){
      //removing permission from state
      let removePermissions = _.remove(currentPermissions, function (pid) { return (pid == data.permission); });
      let newPermissions = _.difference(currentPermissions, removePermissions);
      let newPermissionMap = self.state.permissionMap;
      newPermissionMap[index].permission_ids = newPermissions;
      self.setState({changed: true, permissionMap: newPermissionMap});
    }else{
      //adding permission to state
      let newPermissions = _.concat(currentPermissions, data.permission);
      let newPermissionMap = self.state.permissionMap;
      newPermissionMap[index].permission_ids = newPermissions;
      self.setState({changed: true, permissionMap: newPermissionMap});
    }
  }

categoryIds = _.concat(categoryIds, _(results.removeAftColumnsAndPages).filter({ type: 'column' }).map('_id').value());
pages = _.concat(pages, _(results.removeAftColumnsAndPages).filter({ type: 'page' }));

$scope.extensions[key] = _.concat($scope.extensions[key], media);

solve(digests) {
    const signature = _.concat(
      $.hexToBytes(this.privkey.signDER(digests[0])),
      this.sighash.toByte()
    );
    const sigpushop = scripts.StackData.getPushOp(signature);
    const scriptSigbody = new ByteBuffer.fromHex($.bytesToHex(sigpushop));
    return {
      scriptSig: new scripts.ScriptSig(scriptSigbody),
      witness: new transaction.Witness([])
    };
  }

  .then(others => _.concat(collaborators, others))
})

  .then(others => _.concat(commits, others))
})