Hieu Joestar's profile - activity

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2022-06-27 07:12:54 -0500	received badge	● Nice Question (source)
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2021-10-16 20:11:24 -0500	commented answer	Why Publisher publish a message but Subscriber callback recieves a pointer of message? Hi sir, i know the reason why we use pointer. But why publish() just expect the msg( EX:std_msgs::String msg) instead of
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2021-10-15 08:02:09 -0500	commented question	Why Publisher publish a message but Subscriber callback recieves a pointer of message? oh sorry for my bad english.Message is really the word i want to say. Thank you.
2021-10-15 01:20:35 -0500	asked a question	Why Publisher publish a message but Subscriber callback recieves a pointer of message? Why Publisher publish a mess but Subscriber callback recieves a pointer of mess? I wonder why publisher publish a mess.
2021-10-13 21:35:53 -0500	commented answer	What does rclcpp::spin actually do ? What is "spin node" mean? Thank sir, but "The executors are designed to queue callbacks and make sure nothing blocks other activities." DId you me
2021-10-13 12:16:57 -0500	received badge	● Student (source)
2021-10-13 10:00:19 -0500	asked a question	What does rclcpp::spin actually do ? What is "spin node" mean? What does rclcpp::spin actually do ? What is "spin node" mean? Hello guys, i got a trouble of rclcpp::spin. The rclcpp N