Uncaught ReferenceError: a is not definedconst test = a;생략{ text: 'Image', dataIndex: 'image', renderer: function(value) { return '보기'; }}해결방법1: 변수를 global로 정의const test = a;window.a = a;해결방법2: 변수가 아닌 함수를 호출const test = a;function test() { alert(a);}생략{ text: 'Image', dataIndex: 'image', renderer: function(value) { return '보기'; }}

Model에 정의하기Ext.define('MyApp.model.MyModel', { extend: 'Ext.data.Model', fields: [ { name: 'name', type: 'string' }, { name: 'age', type: 'int', defaultValue: 25 }, // Default value { name: 'city', type: 'string', defaultValue: 'Unknown' } // Default value ]});Model 이벤트에 적용하기const store = Ext.create('Ext.data.Store', { fields: ['name', 'age', 'city'], data: [ ..

for문 등을 이용해서 삭제할 경우, 데이터가 밀리는 문제가 있음뒤에서부터 삭제를 해야 밀리는 문제가 없어짐잘못된 예const drawContainer = Ext.ComponentQuery.query('#drawContainer')[0];const surface = drawContainer.getSurface();const sprites = surface.getItems();console.log(sprites);displayedRects.splice(0, displayedRects.length);sprites.forEach(sprite => { if (sprite.type === 'rect') { console.log(sprite); surface.remove(sprite,..

afterrender 이벤트 사용Ext.create('Ext.form.ComboBox', { fieldLabel: 'Select Item', queryMode: 'local', displayField: 'name', valueField: 'id', renderTo: Ext.getBody(), store: { fields: ['id', 'name'] // Define fields for the store }, listeners: { afterrender: function(combo) { // Trigger when ComboBox is rendered Ext.Ajax.request({ url:..

옵션은 없음Lock 파일 사용flock - Ensures only one instance of the job can run at a time.-n - Fails immediately if the lock cannot be acquired./tmp/myjob.lock - Lock file location./path/to/script.sh - The script to execute. * * * * * flock -n /tmp/myjob.lock /path/to/script.sh PID 체크Creates a PID file (/tmp/myjob.pid) to track the running job.Exits if the file already exists.Deletes the PID file after the..

@DisallowConcurrentExecution annotation을 추가import org.quartz.DisallowConcurrentExecution;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;@DisallowConcurrentExecutionpublic class MyJob implements Job { @Override public void execute(JobExecutionContext context) throws JobExecutionException { System.out.println("Executing job: " + con..