How to pass parameters in downstream jenkins jobs

I got a question how to pass parameter in trailing jobs. Jenkins 2.0 provides option to use Jenkinsfile. Takes in parameter “Task_Name” Runs Job-1 and pass in parameter “Task_Name” to it Upon successful run of Job-1, it will trigger Job-2 and pass in the “Task_Name” parameter Note that Job-1 and Job-2 are 2 separate Jenkins jobs, and the Jenkinsfile below belongs to the Jenkins job that triggers both Job-1 and Job-2