# isTaskVisible

### Description

@short: 지정된 작업이 현재 Gantt 차트에 렌더링되어 있는지 확인합니다

@signature: isTaskVisible: (id: string | number) => boolean

### Parameters

- `id` - (required) *string | number* -        작업의 ID

### Returns
- ` isvisible` - (boolean) - <i>true</i>, if the task is currently rendered in the Gantt chart. Otherwise, <i>false</i>

### Example

~~~jsx
const tasks = {
  data:[
     {id:"p_1", text:"Project #1", start_date:"01-04-2023", duration:18, 
     open:true},
     {id:"t_1", text:"Task #1", start_date:"02-04-2023", duration:8,
     parent:"p_1"},
     {id:"t_2", text:"Task #2", start_date:"11-04-2023", duration:8,
     parent:"p_1"}
   ]
};
gantt.init("gantt_here");
gantt.parse(tasks);
 
gantt.isTaskVisible("t_1"); // ->참  /*!*/
~~~