javascript - Delete element of an array -


before randomly voting down question , suggesting use splice maybe read i'm trying do. thank you.

i'm writing node.js chat bot , 1 of commands need delete specific element of array.

this how command supposed work:

the items 'foo','bar','baz' added array called raidloot. each of these array elements array created users can add , each of array random user selected. if have raidloot = [foo] , second array called foo = [usera,userb,userc], after 1 of users selected 'foo' should removed raidloot.

this relevant code

 case 'loot':      query(connection, 'select * channel name = "' + username + '"').done(function (result) {          if (result[0].length !== 0) {              if (args[1] === 'clear') {                  raidloot = []                  send_privgrp_message(botid, username + ' cleared loot list')              } else {                  raidloot.push(args.slice(1).join(' '))                  send_privgrp_message(botid, username + ' added ' + args.slice(1).join(' ') + ' slot #' + raidloot.length + '. use !add ' + raidloot.length + ' join ')                  lootslot[raidloot.length] = []              }            } else {              send_message_private(userid, 'you have join channel first')          }      })       break;

and problem is:

exports.flatroll = flatroll = function (userid, args) {     if (raidloot.length === 0) {         send_message_private(userid, 'there no loot')         return     }     connectdb().done(function (connection) {         checkaccess(userid).done(function (result) {             userac = result             access_req(connection, 'rem').done(function (result) {                 if (result[0].length === 0 || result[0].length > 0 && result[0][0].status === 'enabled') {                     if (result[0].length === 0 || result[0][0].access_req <= userac) {                         getusername(connection, userid).done(function (result) {                             username = result[0][0].name                             if (!args) {                                 winnerlist = '<center> <font color=#ffff00> :::flatroll results::: </font> </center> \n'                                 (loot in raidloot) {                                     winnerlist += '<font color=#00ffff>slot #' + (+loot + 1) + '</font> \n'                                     winnerlist += 'item: ' + raidloot[loot] + '\n'                                     if (lootslot[+loot + 1].length === 0) {                                         winnerlist += 'winner: no 1 added \n'                                     } else {                                         winnerlist += 'winner:</font><font color=#00ff00>' + _.sample(lootslot[+loot + 1]) + '</font> \n'                                         lootslot[+loot + 1] = []                                         raidloot.splice(loot, 1) // line need better alternative for.                                     }                                      winnerlist += '<img src=tdb://id:gfx_gui_friendlist_splitter>\n'                                  }                                 send_privgrp_message(botid, blob('winner list', winnerlist))                                 connection.release()                             } // else args                          })                     } else {                         connection.release()                         send_message_private(userid, 'access denied')                     }                 } else {                     connection.release()                     send_message_private(userid, 'command disabled')                 }             })         })     }) }

'raidloot.splice(loot, 1)' work how it's supposed result not need, if there multiple items added , users join 1 of them displayed list contain items except last one, length of raidloot modified loop doesnt last item , on multiple items, less displayed.

i'm new @ node, doing project way learn don't harsh on newb code :)

seems works if split loop in 2 separate loops, 1 extracting winner , second removing array winner found.

if (!args) {     winnerlist = '<center> <font color=#ffff00> :::flatroll results::: </font> </center> \n'     var rl = raidloot     (i = 0; < rl.length; i++) {         winnerlist += '<font color=#00ffff>slot #' + (i + 1) + '</font> \n'         winnerlist += 'item: ' + raidloot[i] + '\n'         if (lootslot[i + 1].length === 0) {             winnerlist += 'winner: no 1 added \n'         } else {             shuffleusers = _.shuffle(lootslot[i + 1])             console.log(shuffleusers)             winnerlist += 'winner:</font><font color=#00ff00>' + _.sample(shuffleusers) + '</font> \n'         }          winnerlist += '<img src=tdb://id:gfx_gui_friendlist_splitter>\n'      }     send_privgrp_message(botid, blob('winner list', winnerlist))      (i = 0; < rl.length; i++) {         if (lootslot[i + 1].length > 0) {             lootslot[i + 1] = []             raidloot = _.without(raidloot, rl[i])         }     }     connection.release()   }

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