The post records the issue I met when using protobuf uint64 and Java Long.
What is this?
It has different values depending on where it is used:
In a method, this refers to the owner object. Alone, this refers to the global object. In a function, this refers to the global object. In a function, in strict mode, this is undefined. In an event, this refers to the element that received the event. Methods like call(), and apply() can refer this to any object.
“piexifjs” is a node.js npm library which can be used to read and write Exif data in image files.