People get confused between jargon and slang. Both are different. Slang is an informal language used by a group of people in a specific area. On the other hand, jargon is a technical term used by a specific group of people in a particular industry or occupation. The jargon is formal language whereas slang is informal language.
An example of slang is “What’s up”. In comparison, an example of jargon is a software developer speaking of “software development lifecycles”.