te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Reactjs How to stop the loop - Stack Overflow
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javascript - Reactjs How to stop the loop - Stack Overflow

programmeradmin3浏览0评论

I've been wondering how to stop your loop, like break in some programming languages but in React js seems don't working.

something like this:

loop(){
  if(){
    //meet the if statement end the loop.
    break;  //not working.
  }
}

no actually the loop is a fetch from the server using aPI.

I've been wondering how to stop your loop, like break in some programming languages but in React js seems don't working.

something like this:

loop(){
  if(){
    //meet the if statement end the loop.
    break;  //not working.
  }
}

no actually the loop is a fetch from the server using aPI.

Share Improve this question edited Oct 4, 2017 at 7:54 Dave Niaga Lape asked Oct 4, 2017 at 7:42 Dave Niaga LapeDave Niaga Lape 371 gold badge1 silver badge6 bronze badges 4
  • 2 You question has nothing to do with React :) – David Guan Commented Oct 4, 2017 at 7:43
  • 1 where is the loop (for, while, forEach, map, etc)? – Davin Tryon Commented Oct 4, 2017 at 7:43
  • More detail about how this loop function is called is required for you to get a good answer. – Canastro Commented Oct 4, 2017 at 7:47
  • sorry the loop is a fetch statement from the server using API. – Dave Niaga Lape Commented Oct 4, 2017 at 7:56
Add a ment  | 

2 Answers 2

Reset to default 10

Your loop() is actually a function which you can return from in order to escape it.

loop(){
  if(){
    return;
  }
}

You can create a exit statement for if . And break do not work with if condition.

   loop(){
     let breakCondition = false;
      if(actualCondition && !breakCondition ){
        //here actualCondition  is the expression you are using in if.
         breakCondition  = true

      }
    }

And If there is no other code below the if condition than check @Soviut answer.

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