nodered flow내 변수 flowContext 사용법 count 예문

 

 

 

Flow 내에   count 를 0 으로 한다.   그값을 msg.payload  에 전달

j: $flowContext("count")+1

 

 

flow내 count 의 값은  $flowContext("count")+1값으로 대치되고,   flow.count값이 msg.payload 로 전달된다.

6번 클릭하니  msg.payload  값이  6으로 카운팅된  모습

 

 

 function 노드내에서    context.get(), .set()  을 이용시 참고

if (context.get("counter") === undefined) {
    context.set("counter", 0)
}

 

 

압축형식  전체소스

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전체소스

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]